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A body rotating at 20rad//s is acted upo...

A body rotating at `20rad//s` is acted upon by a constant torque providing it a deceleration of `2rad//s^(2)`. At what time will the body have kinetic energy same as the initial value if thhe torque continues to act?

Text Solution

Verified by Experts

`omega=omega_(0)-alphat`
`-20=20-2t`
`thereforet=20s`
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