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Two racing cars of masses m and 4m are moving in circles of radii r and 2r respectively. If their speeds are such that each makes a complete circle in the same time, then the ratio of the angular speeds of the first to the second car is

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8:1

4:1

2:1

1:1

answer is D.

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Detailed Solution

We know that both the cars take the same time to complete the circle, therefore ratio of angular speeds of the cars will be 1 : 1.

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