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Question

two cars of masses m &M are moving in circles of radii r & R their speeds are such that they make complete circle in same time t. ratio of centripetal acceleration

1) m:M

2)R:r

3)1:1

4) MR:mr

aieee 2012 is the ans is (4)

Joshi sir comment

since both make complete circle in same time t so angular velocities of the two will be same

now use F = mrω²

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