The next few questions challenge you to figure out the acceleration due to gravity ( g ) on various hypothetical alien p

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The next few questions challenge you to figure out the
acceleration due to gravity ( g ) on various hypothetical alien
planets. On Planet #1, you drop a stone from rest, 78.6 m above the
ground, and the stone hits the ground 7.18 s later. What is the
value of g on Planet #1?
21.89 m/s^2
3.05 m/s^2
1.52 m/s^2
10.95 m/s^2
2.
On planet #2, you launch a projectile straight up from the
ground at a speed of 62.7 m/s. The projectile reaches a maximum
height of 60.6 m before falling back to the ground. What is the
value of g for planet #2?
58.57 m/s^2
32.44 m/s^2
64.87 m/s^2
29.29 m/s^2