/sci/ - Science & Math » Thread #11027151

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Anonymous Thu 03 Oct 01:37:54 2019 No.11027151 View Reply Original Report

Quoted By:

can someone pls help me with this? im not gettin shit :(

Anonymous

Anonymous Thu 03 Oct 2019 01:58:22 No.11027183 Report

Quoted By: >>11027187 >>11028200 >>11029243

for question a:
plot the x and y graphs with t as the independent variable. this will give you the initial and final positions of the frisbee in both x and y. the boundaries of y will be t=0 and t=(value of t when y=0 (frisbee hitting the ground)). The boundaries of x will be the same because it can't move anymore when it hits the ground. these are position/time curves so you can find acceleration in each direction by taking the second derivative of these bounded slopes. Use these values as vectors in a triangle, the hypotenuse and angle will give you your magnitude and direction. Also, i'm a retarded freshman so take this with a grain of salt. That's how i'd approach the question though.

Anonymous

Anonymous Thu 03 Oct 2019 02:00:03 No.11027187 Report

Quoted By: >>11027215

>>11027183
and ignore the sentence about initial and final positions. isn't relevant.

Anonymous

Anonymous Thu 03 Oct 2019 02:15:05 No.11027215 Report

Quoted By:

>>11027187
for b:
take first derivative of both functions, then replace t with two. these again will be vectors of a right angle triangle. hypotenuse and angle gives you magnitude and direction of velocity

Anonymous

Anonymous Thu 03 Oct 2019 13:09:05 No.11028200 Report

Quoted By:

>>11027183
1: differentiate twice for x and y and use Pythagoras for magnitude
2: differentiate once for x and y, substitute 2 into t, and then use Pythagoras for magnitude

Anonymous

Anonymous Thu 03 Oct 2019 21:00:40 No.11029243 Report

Quoted By:

>>11027183
btw ignore the stuff about boundaries, i thought it was an integration problem at first and forgot to delete that

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