Question

under a constant torque the angular momentum of a body changes from 2x to 5x in 8 sec the torque acting on the body is ​

Answer 1

Given info : Under a constant torque, the angular momentum of a body changes from 2x to 5x in 8 sec.

To find : The torque acting on the body is ...

solution : torque is rate of change of angular momentum with respect to time.

i.e., torque = change in angular momentum/change in time

⇒τ = ∆L/∆t

= (5x - 2x)/8

= 3x/8

Therefore the torque acting on the body is 3x/8.

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