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

A projectile is launched over level ground on an unnamed planet. The equation of the projectile's vertical position is y(t)=-6t^{2}+48t-90.

a. Determine the acceleration due to gravity on this planet

b. Determine (y_{max}, t_{ymax}), the coordinates of the maximum height of the projectile in the t-y plane

2. Relevant equations

r_{f}=r_{i}+v_{i}t+1/2gt^{2}

3. The attempt at a solution

I know r_{i}=0 because that's the origin

Since I'm not given a time or velocity I'm stuck on how to solve for anything

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# Determine the acceleration due to gravity on this planet

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