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 :

Options

A. `6.66 kg m^(2) s^(-2)`
B. `8.58 kg m^(2) s^(-2)`
C. `10.86 kg m^(2) s^(-2)`
D. `2.86 kg m^(2) s^(-2)`

Answer

a