Angular Velocity
Trending Questions
The phase difference between displacement and acceleration of a particle performing SHM is?
 4π2 rad/s
 2π2 rad/s
 π rad/s
 4π rad/s
Calculate the angular speed of the second hand and hour hand of the clock?
The angular velocity of a particle rotating in a circular orbit 100 times per minute is
1.66 rad/s
10.47 rad/s
60 deg/s
10.47 deg/s
 1 : 1
 2 : 1
 4 : 1
 1 : 2
 √6gL sinθ
 √6gL sinθ2
 √6gLcosθ2
 √6gL cosθ
 You can find two points in the body in a plane perpendicular to the axis of rotation having same velocity.
 You can find two points in the body in a plane perpendicular to the axis of rotation having the same acceleration
 Speed of all the particles lying on the curved surface of a cylinder whose axis coincides with the axis of rotation is the same
 Angular speed of the body is the same as seen from any point on the body.
In 1.0 s, a particle goes from point A to point B, moving in a semicircle of radius 1.0 m (see figure). The magnitude of the average velocity is
3.14 m/s
2.0 m/s
1.0 m/s
Zero
 8 rad/sec2
 10 rad/sec2
 12 rad/sec2
 None
A satellite in a circular orbit of radius $R$ has a period of $4h$. Another satellite with an orbital radius of $3R$ around the same planet will have a period
(in hours)
$16$
$4$
$4\sqrt{27}$
$4\sqrt{8}$
Find its angular acceleration in rad/s2
 √2π
 √22π
 2√2π
 2√23π
How to calculate the mass of the sun?
A ballet dancer spins with 24 revs−1 with her arms stretched out when the moment of inertia about the axis of rotation is 1. Calculate the new rate of spin, if the moment of inertia about the same axis is 0.61.
 10 rev/s
20 rev/s
30 rev/s
40 rev/s
 32v

√23v  √32v
 23v
 2:1
 4:1
 5:1
 3:1
 8 rad/s
 12 rad/s
 24 rad/s
 36 rad/s
 −I1ω2124
 −I1ω2112
 38I1ω21
 I1ω216
 2π(60×60×24) rad/sec
 2π(60×60) rad/sec
 2π(365×24×60×60) rad/sec
 2π60 rad/sec
 2×10−4
 1×10−3
 4×10−6
 3×10−5
 25 sec
 0.25 sec
 12 sec
 1.2 sec
 60:1
 12:1
 1:60
 1:12
 6, 12
 6, 6
 8, 12
 12, 4
A homogeneous rod AB of length L and mass M is pivoted at the centre O in such a way that it can rotate freely in the vertical plane. The rod is initially in the horizontal position. An insect S of the same mass M falls vertically with speed V on the point C midway between O and B. The initial angular velocity ω in terms of V and L is
A dumbbell consists of two identical small balls of mass 12 kg each connected to the two ends of a 50 cm long light rod. The dumbbell is rotating about a fixed axis through the centre of the rod and perpendicular to it at an angular speed of 10 rad/s. An impulsive force of average magnitude 5.0 N acts on one of the masses in the direction of its velocity for 0.10 s. Find the new angular velocity of the system.
Two masses M and m are connected by a light string going over a pulley of radius r. The pulley is free to rotate about its axis which is kept horizontal. The moment of inertia of the pulley about the axis is I. The system is released from rest. Find the angular momentum of the system when the mass M has descended through a height h. The string does not slip over the pulley.
 24289 rad/s
 8289 rad/s
 38 rad/s
 817 rad/s
 remains constant
 continuously increases
 continuously decreases
 oscillates