Q1 of 23 Page 117

What path will the moon take when the gravitational interaction between the moon and earth disappears?

Since the moon is in uniform circular motion with earth as the center. Therefore, when the gravitational interaction between the moon and the earth disappears the centripetal force due to which moon is revolving around the earth will become zero and it moves tangentially to the position it was present. Actually, gravitational force doesn’t disappear, so these worries are useless.


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2

A car moves with constant speed of 10 m/s in a circular path of radius 10m. The mass of the car is 1000 kg. Who or what is providing the required centripetal force for the car? How much is it?

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 4

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 5

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