A satellite is in a low circular orbit about the earth such, Ask an Expert

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Q1. A satellite is in a low circular orbit about the Earth (such as it just skims the surface of the Earth). How long does it take to make one revolution around Earth? (The mean radius of the Earth is 6.38 × 106 m.)

Q2. A 43.0 kg girl is standing on a 132 kg plank. The plank, originally at rest, is free to slide on a frozen lake that is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.46 m/s relative to the plank.

What is her velocity relative to the surface of ice?

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Category:- Physics
Reference No.:- M9160794

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