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A solid disc is rotating at an angular s...

A solid disc is rotating at an angular speed of `20 rad//s`. It is decelerated at a constant rate of 2 `rad // s^2` . Through what angle disc will turn before coming to rest ?

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`omega^2-omega_0^2=2 alpha theta`
`therefore 0-400=2xx(-2)xxtheta therefore theta`=100 radian
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