A couple produces: [NTSE 1995; CBSE PMT 1997; DCE 2004]
1. Purely linear motion
2. Purely rotational motion
3. Linear and rotational motion
4. No motion
A wheel is rotating at the rate of 33 rev/min. If it comes to stop in 20 s. Then, the angular retardation will be
1.
2.
3.
4.
A wheel is at rest. Its angular velocity increases uniformly and becomes 80 rad/s after 5 s. The total angular displacement is
1. 800 rad
2. 400 rad
3. 200 rad
4. 100 rad
A flywheel is in the form of a uniform circular disc of radius 1 m and mass 2 kg. The work which must be done on it to increase its frequency of rotation from 5 rev to 10 rev is approximately
1. 1.5 x J
2. 3.0 x J
3. 1.5 x J
4. 3.0 x J
If the equation for the displacement of a particle moving on a circular path is given by , where is in radian and t is in second, then the angular velocity of the particle after 2s is
1. 8 rad/s
2. 12 rad/s
3. 24 rad /s
4. 36 rad/s