MEDIUM
NEET
IMPORTANT
Earn 100

A wheel is rotating about its axis at a constant angular velocity. If suddenly an object sticks to it on the rim, then its M.I. will
(a)increase.
(b)decrease.
(c)remain unchanged.
(d)nothing can be said.

50% studentsanswered this correctly

Important Questions on Rotational Mechanics
HARD
NEET
IMPORTANT
A wheel is rotating about its axis at a constant angular velocity. If suddenly an object sticks to it on the rim, then the angular velocity will

MEDIUM
NEET
IMPORTANT
An ant is sitting at the edge of a rotating disk. If the ant reaches the other end after moving along the diameter, the angular velocity of the disk will,

MEDIUM
NEET
IMPORTANT
The angular momentum of the body remains to conserve if

HARD
NEET
IMPORTANT
A person is standing on the edge of a circular platform, which is moving with constant angular speed about an axis passing through its centre and perpendicular to the plane of the platform. If a person is moving along any radius towards the axis of rotation then the angular velocity will

EASY
NEET
IMPORTANT
A thin circular ring of mass and radius is rotating about its axis with a constant angular velocity . Four objects each of mass , are kept gently to the opposite ends of two perpendicular diameters of the ring. The angular velocity of the ring will be

EASY
NEET
IMPORTANT
A round disc of moment of inertia about its axis perpendicular to its plane and passing through its center is placed over another disc of moment of inertia rotating with an angular velocity about the same axis. The final angular velocity of the combination of discs is

HARD
NEET
IMPORTANT
Rate of change of angular momentum with respect to time is proportional to :-

HARD
NEET
IMPORTANT
A small steel sphere of mass is tied to a string of length and is whirled in a horizontal circle with a uniform angular velocity . The string is suddenly pulled, so that radius of the circle is halved. The new angular velocity will be
