#8 | Angular Variables
(Physics) > Systems of Particles and Rotational Motion
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Related Practice Questions :

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

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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) $\mathrm{\pi }\frac{\mathrm{rad}}{{\mathrm{s}}^{2}}$                          (2)

(3)               (4)

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Difficulty Level:

A constant torque of 1000 N-m turns a wheel of moment of inertial 200 $\mathrm{kg}-{\mathrm{m}}^{2}$ about an axis through its centre. Its angular velocity after 3 s is

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A wheel is rotating 900 rpm about its axis. When power is cut off it comes to rest in 1 min. The angular retardation in rad/s2 is

1. $\mathrm{\pi }/2$

2. $\mathrm{\pi }/4$

3. $\mathrm{\pi }/6$

4. $\mathrm{\pi }/8$

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Difficulty Level:

A wheel is at rest. Its angular velocity increases uniformly and becomes 80 rad/s after 5 s. The total angular displacement is