posted by Anonymous .
A 5.0-kilogram sphere, starting from rest, falls freely 22 meters in 3.0 seconds near the surface of a planet.
Compared to the acceleration due to gravity near Earth’s surface, the acceleration due to gravity near the
surface of the planet is approximately
On the planet that is NOT earth,
22 = (g'/2)*(3.0)^2
so the value of the acceleration of gravity there is
g' = 44/9 = 4.89 m/s^2
The is just about half the value of g at the surface of the Earth (9.8 m/s^2)