MEDIUM
NEET
IMPORTANT
Earn 100
When a body is rolling without slipping on a rough horizontal surface, the work done by 'friction is
100% studentsanswered this correctly
Important Questions on System of Particles and Rotational Motion
HARD
NEET
IMPORTANT
A solid spherical ball is rolling without slipping down an inclined plane. The fraction of its total energy associated with rotation is
HARD
NEET
IMPORTANT
A solid cylinder of mass M and radius R rolls down the inclined plane from height h without slipping. The speed of its centre of mass when it reaches the bottom is:
HARD
NEET
IMPORTANT
An inclined -plane makes an angle of with the horizontal. A solid sphere rolling down this inclined plane from rest without slipping has a linear acceleration equal to
MEDIUM
NEET
IMPORTANT
An object slides down a smooth incline and reaches the bottom with velocity . If same mass is in the form of a ring and it rolls down an inclined plane of same height and angle of inclination, then its velocity at the bottom of inclined plane will be
MEDIUM
NEET
IMPORTANT
A swimmer while jumping into river from a height easily forms a loop in air if
MEDIUM
NEET
IMPORTANT
The centre of mass of a body
MEDIUM
NEET
IMPORTANT
A child sitting at the centre of a rotating stool has his arms stretched. If he folds his arms, his angular speed about the axis of rotation,
MEDIUM
NEET
IMPORTANT
The position vector of three particles of masses, and are and respectively. The position vector of their center of mass is,
