Multiple Choice
An object is released from rest when it is a height h above the surface of a planet of mass M and radius R.What is the speed of the object just before striking the surface of the planet? Neglect any air resistance.Let h = 4.0*106 m,R = 5.0 *106 m,and M = 4.0 *1024 kg.
A) 7.8 km/s
B) 3.5 km/s
C) 5.4 km/s
D) 6.9 km/s
E) 4.8 km/s
Correct Answer:
Verified
Correct Answer:
Verified
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