A disc of mass 16 kg and radius 25 cm is rotated about its axis. What torque will increase its angular velocity from 0 to `8 pi` rad/s in 8 s ?A. `pi Nm`B. `pi//2 Nm`C. `pi//4 Nm`D. `2pi Nm`

A disc of mass 16 kg and radius 25 cm is rotated about its axis. What

1.	A disc of mass 16 kg and radius 25 cm is rotated about its axis. What torque will increase its angular velocity from 0 to `8 pi` rad/s in 8 s ?A. `pi Nm`B. `pi//2 Nm`C. `pi//4 Nm`D. `2pi Nm`
Answer» Correct Answer - B `tau = (MR^(2))/(2)xx((omega_(2)-omega_(1)))/(t)`

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A disc of mass 16 kg and radius 25 cm is rotated about its axis. What torque will increase its angular velocity from 0 to `8 pi` rad/s in 8 s ?A. `pi Nm`B. `pi//2 Nm`C. `pi//4 Nm`D. `2pi Nm`

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