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An autmobile moves on road with a speed ...

An autmobile moves on road with a speed of `54 km//h`. The radius of its wheel is `0.45 m` and the moment of inertia of the wheel about its axis of rotation is `3 kg m^(2)`. If the vehicle is brought to rest in `15 s`, the magnitude of average torque tansmitted by its brakes to the wheel is :

A

`2.86"Kg m"^(2) s^(-2)`

B

`6.66"kg m"^(2)s^(-2)`

C

`8.58"kg m"^(2)s^(-2)`

D

`10.86"kg m"^(2) s^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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