Physics Practice Problems Acceleration Due to Gravity Practice Problems Solution: Planet Sec is spherical and has uniform density. I...

Solution: Planet Sec is spherical and has uniform density. Its radius is R = 5.00 x 106 m and its mass is M = 4.00x1022 kg. A rock is released from rest from a height of 20.0 m above the surface of the planet. How many seconds does it take the rock to reach the surface of the planet? Air resistance can be neglected.

Problem

Planet Sec is spherical and has uniform density. Its radius is R = 5.00 x 106 m and its mass is M = 4.00x1022 kg. A rock is released from rest from a height of 20.0 m above the surface of the planet. How many seconds does it take the rock to reach the surface of the planet? Air resistance can be neglected.