APFIVE Gravitational Energy Conservation
A small mass m is initially at rest at a distance 3R from the center of a uniform sphere of mass M and radius R. If the mass is released and falls toward the sphere, what is its speed when it reaches the surface of the sphere?
A
√(2GM/3R)
B
√(4GM/3R)
C
√(GM/R)
D
√(2GM/R)
Question Leaderboard
| Rank | |||||
|---|---|---|---|---|---|
| #1 | erikayeh0801 | 1 | 1 | 0m 00s | 100 |
| #2 | isseiyoshida08 | 1 | 3 | 5m 16s | -236 |
| #3 | fsfa.alsharif | 1 | 2 | 16m 39s | -909 |
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