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Old 04-14-2022, 07:38 PM   #1
wes
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Default high school calculus problem... Help

Kid is stumped on this problem and I am no help. Thought I would reach out here. Any help would be appreciated.

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Old 04-14-2022, 07:54 PM   #2
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Man, I forgot all that stuff as soon as I could. Sorry i am no help.
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Old 04-14-2022, 08:02 PM   #3
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3

The answer is always 3

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Old 04-14-2022, 08:15 PM   #4
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Bobcat

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Old 04-14-2022, 08:16 PM   #5
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Quote:
Originally Posted by WCB View Post
3



The answer is always 3



It's a golf question so it must be.....

For

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Old 04-14-2022, 08:18 PM   #6
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Quote:
Originally Posted by bobby314 View Post
Man, I forgot all that stuff as soon as I could. Sorry i am no help.

Its like a foreign language you learn the fundamentals of and then never use again because computers haha.


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Old 04-14-2022, 08:20 PM   #7
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Potato salad
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Old 04-14-2022, 08:25 PM   #8
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my youngest son...who is math/engineer major would know. problem is he doesn't return my text.

When i threaten to disable his phone, he magically returns my text.
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Old 04-14-2022, 08:33 PM   #9
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Quote:
Originally Posted by Quackerbox View Post
Bobcat

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I think you missed a cosine. Clearly a lynx.
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Old 04-14-2022, 08:35 PM   #10
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Quote:
Originally Posted by Huntindad View Post
my youngest son...who is math/engineer major would know. problem is he doesn't return my text.

When i threaten to disable his phone, he magically returns my text.
Lol.

Before mine left for school we had an app on his phone. I could turn it into a coaster with 2 clicks. He always called when that happened.

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Old 04-14-2022, 08:38 PM   #11
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Who’s hitting the golf ball
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Old 04-14-2022, 08:44 PM   #12
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This is in my backyard, but you don't provide enough info, to solve.

Key Quote: "Given the same type of golf ball scenario ...."

Without knowing that scenario, this problem is not solvable. If your son did not pick up that clue, he may be missing the info he needs to solve the problem.

Not picking on you or your son, but I taught college level Mathematics, for four years. The biggest problem most of my students had was a "reading comprehension problem", not a "Math Skills problem."
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Old 04-14-2022, 08:46 PM   #13
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Im from Porter.....no help here🤣🤣🤣
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Old 04-14-2022, 08:58 PM   #14
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If this is still unsolved by the time I get home I'll take a look at it.
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Old 04-14-2022, 09:04 PM   #15
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Doesn't matter, I am not going to find it anyways! Lol
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Old 04-14-2022, 09:19 PM   #16
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Why they gotta put letters in the mafs?
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Old 04-14-2022, 09:41 PM   #17
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thanks guys. he got it solved with his buddies help from school.

angle ball takes off is 57.99
time in air is 6.32
ball speed is 119.3

At least that is what he told me. I tried to argue that it was either bobcat or potato salad but he wouldn't listen
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Old 04-14-2022, 09:46 PM   #18
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If he turns in an answer of ‘potato salad’ I’ll PayPal him $20.
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Old 04-14-2022, 10:00 PM   #19
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Quote:
Originally Posted by hogslayer78 View Post
Im from Porter.....no help here

I got this…..



Purple


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Old 04-14-2022, 10:13 PM   #20
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It gives the trajectory of the ball y(height) vs x(distance). What you care about is the slope of that line, specifically at the very beginning, x = 0. To find the slope of a curved line you use derivatives. Basically how y is changing versus x as the x approaches 0, rise over run, which is the derivative. Derivative of Y = -0.004x2+1.6x is -0.008x +1.6

Now plug in x=0, the rise is 1.6. Tangent of rise over run is the angle, 57.99.
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Old 04-15-2022, 08:07 AM   #21
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Quote:
Originally Posted by Wits_End View Post
It gives the trajectory of the ball y(height) vs x(distance). What you care about is the slope of that line, specifically at the very beginning, x = 0. To find the slope of a curved line you use derivatives. Basically how y is changing versus x as the x approaches 0, rise over run, which is the derivative. Derivative of Y = -0.004x2+1.6x is -0.008x +1.6

Now plug in x=0, the rise is 1.6. Tangent of rise over run is the angle, 57.99.
You beat me to it!
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Old 04-15-2022, 08:12 AM   #22
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Photomath app.
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Old 04-15-2022, 08:19 AM   #23
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nice shot.
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Old 04-15-2022, 09:13 AM   #24
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Been too long for me crunching calculus problems.
Last time I did was 2001 when I took statistical thermodynamics
No more I’m done
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Old 04-15-2022, 09:25 AM   #25
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You need a drag coefficient!
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Old 04-15-2022, 09:28 AM   #26
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D. All of the above.
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Old 04-15-2022, 09:28 AM   #27
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Quote:
Originally Posted by mikemorvan View Post
I think you missed a cosine. Clearly a lynx.
I've never used cosine. I've seen it in dope houses but never touch the stuff

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Old 04-15-2022, 09:33 AM   #28
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Always a nice reminder that you can be successful in life without Needing any of that trash. Good luck OP
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Old 04-15-2022, 09:40 AM   #29
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The real answer is none of the above. He slice the ball off into the weeds and took a mulligan.
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Old 04-15-2022, 10:06 AM   #30
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I'm not sure this is a "you came to the right place" scenario! Thank the Lord I don't need to remember that garbage.
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Old 04-15-2022, 10:21 AM   #31
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The Train heading East!
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Old 04-15-2022, 10:58 AM   #32
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TBH never disappoints. Wits_End thanks for the explanation. Mikemorvan, if it wasn't multiple choice he would have taken you up on it
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Old 04-15-2022, 11:06 AM   #33
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Default high school calculus problem... Help

Quote:
Originally Posted by Hammerdown View Post
The Train heading East!

At 119mph


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Old 04-15-2022, 11:12 AM   #34
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Was it a Titlelist or Pinnacle ball?

That S#### still gives me shivers and headaches.
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Old 04-15-2022, 11:17 AM   #35
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There was a reason it took me 3 times to pass calculus
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Old 04-15-2022, 12:53 PM   #36
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I’m stressing about helping my daughter with this crap in high school now lmao. Guess I’ll have to relearn it ugh.

I’m no help. And I used to not even have to study and I’d nail all my tests. Too many beers between then and now!
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Old 04-15-2022, 01:24 PM   #37
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Clearly the caddy's name was Friday !
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Old 04-15-2022, 01:39 PM   #38
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Whatever the Range finder says.


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Old 04-15-2022, 01:51 PM   #39
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Quote:
Originally Posted by Wits_End View Post
It gives the trajectory of the ball y(height) vs x(distance). What you care about is the slope of that line, specifically at the very beginning, x = 0. To find the slope of a curved line you use derivatives. Basically how y is changing versus x as the x approaches 0, rise over run, which is the derivative. Derivative of Y = -0.004x2+1.6x is -0.008x +1.6

Now plug in x=0, the rise is 1.6. Tangent of rise over run is the angle, 57.99.
Nice job! I was waiting to see if anyone would give an actual answer.
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Old 04-15-2022, 02:01 PM   #40
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I had to take one semester of Caculus at A&M. The prof said don't worry- it will all make sense when you take the second semester. I wasn't that **** curious...
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Old 04-15-2022, 02:25 PM   #41
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Can't answer b or c without Vo (initial velocity).

b) time of flight simply requires rearranging x(t) equation to t=(x/...). Then put in theta =57.99 from above deriv, Vo and x=400, which is the distance along x to where the ball landed, that calculates the time t where the ball lands.

c) I'd have to do some writing on paper, you have x(t) and y(t) which are positions related to time, each accelerations in their own axis. You care about combined velocity of both x(range) and y(height). So I think you need to sqrt(x^2+y^2) into one equation, then take derivative at x=400 to get velocity at that time. Not highly confident in this, would need to write it out and see what numbers show.
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Old 04-15-2022, 03:20 PM   #42
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Did I tell y’all my uncle got a bow flex?
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Old 04-15-2022, 04:52 PM   #43
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Which direction was the wind ??
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Old 04-15-2022, 05:01 PM   #44
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I almost had it! Then I ran out of fingers to count on.
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Old 04-15-2022, 05:09 PM   #45
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If you're really worried about the take off angle, speed, or time in the air, you've clearly not had enough cocktails to be playing golf.

That's my final answer!
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Old 04-15-2022, 05:17 PM   #46
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One of the most difficult subjects in school, luckily I don't have to deal with it anymore
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Old 04-15-2022, 05:21 PM   #47
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Calculus is the only class i ever failed in college, but im sure skipping a lot of the classes did not help passed it the next semester but still did not understand it...lol
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Old 04-15-2022, 08:28 PM   #48
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17 beers
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