Q.

A wheel of radius r rolls without slipping on a flat surface, with its centre of mass undergoing a linear deceleration a. Then,

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a

a non -zero toque is acting on the wheel about its CM.

b

the net torque acting on the wheel cannot be calculated as the data is insufficient.

c

the net torque acting on the wheel is zero

d

the net torque acting on the wheel may be zero or non-zero

answer is A.

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Detailed Solution

Angular acceleration of the wheel α=τIc.Also α=aR.

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