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Two racing cars of masses m and 4m are m...

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

A

` 1 : 1`

B

`h : r2`

C

`ny -ny`

D

`"^mIm_2 : rxr2`

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