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

The problem is attached

2. Relevant equations

L=mr^2(dr/dt)

V_escape=(GM/R)^.5

E=L^2/(2mR^2)-(GMm)/R=0

3. The attempt at a solution

after some work i got:

dr/dtheta=((r^3/R)-r^2)^1/2

dont know what to do from here.

Thanks.

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# Horizontal escape of a projectile

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