A fly wheel of moment of inertia 3 \times 10^{2} {kg} {m}^{2} is rotating with uniform angular speed of 4.6 {\rads}^{-1} . If a torque of 6.9 \times 10^{2} {Nm} retards the wheel, then the time in which the wheel comes to rest is

KEAM 2010 Physics and Chemistry Paper

Question : 47 of 119

Marks: +1, -0

A fly wheel of moment of inertia 3×102kgm2 is rotating with uniform angular speed of 4.6rads−1. If a torque of 6.9×102Nm retards the wheel, then the time in which the wheel comes to rest is

1.5s
2s
0.5s
1s
2.5s

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