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A car is moving at a speed of 72 km//hr...

A car is moving at a speed of 72 `km//hr`. The diameter of its wheel is 0.5 m. IF the wheels are stopped in 20 rotations applying brakes, then angular retardation produced by the brakes would be

A

`-45.5 rad//s^(2)`

B

`-33.5 rad//s^2`

C

`-25.48 rad//s^(2)`

D

`-50.9 rad//s^(2)`

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