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10. | A man is standing on an international space station which is orbiting earth at an altitude 520km with a constant speed 7.6km/s. If the man’s weight is 50kg, his acceleration is? | |
A. | 7.6 km/s2 | |
B. | 7.6 m/s2 | |
C. | 8.4 m/s2 | |
D. | 10 m/s2 | |
Answer: Option C | |
Explanation: | |
gh=R2/(R+h)2 g |
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