(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Physics question: A golfball with an initial speed of 57.9 m/s lands exactly 85 m downrange on a level course. The acceleration of gravity is 9.8 m/s^2

Neglecting air friction, what minimum projection would achieve this result ? What maximum projection would achieve this result ? Answer in units of degrees Please.

2. Relevant equations

3. The attempt at a solution

Viy=57.9 sin theta

ay= -9.8

delta y=0

vix=57.9 cos theta

ax= 0

delta x=85

from horizontal,

t= 85/(57.9 cos theta)

from vertical,

0 = (57.9 sin theta) t + 1/2 (-9.8) (t)^2

So i tried doing it and got to the point so far and got stuck (can't seem to do the algebra). can anyone show me how to do this please Thanks.

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# Homework Help: Projectile motion Problem :/

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