Q.

A grinding wheel is rotating at 3000 rpm. When the switch is turned off the wheel stops in 10 seconds. The uniform deceleration of the wheel was

A. 1 rad/s2
B. 31.4 rad/s2
C. 4 rad/s2
D. 62.8 rad/s2
E. 10.4 rad/s2
Answer» B. 31.4 rad/s2
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