Earth has a mass of 6.0x1024 kg and a speed of 30 km/s. If it a...
Earth has a mass of 6.0x1024 kg and a speed of 30 km/s. If it a distance of 149.6 gigameters from the sun, what is the magnitude of the angular momentum of earth?
Homework Answers
Solution :
Given :
m = 6 x 1024 kg
v = 30 km/s = 30 x 103 m/s
r = 149.6 giga-meters = 149.6 x 109 m
Since : Angular momentum (L) = m v r
Thus : L = (6 x 1024 kg)(30 x 103 m/s)(149.6 x 109 m) = 2.693 x 1040 kg m2 /s
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