rotational-motion

Question: A body rotating at 20 rad/sec is acted upon by a constant torque providing it a deceleration of 2 rad/sec2. At what time will the body have kinetic energy same as the initial value if the torque continues to act



1) 20 secs
2) 40 secs
3) 5 secs
4) 10 secs
Solution: Explanation: No Explanation
kinetic energy work and power

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