Linear Momentum MCQ - Practice Questions & Answers

Solve by difficulty

A bullet of mass 10 g moving horizontal with a velocity of 400 m s^-1 strikes a wood block of mass 2 kg which is suspended by light inextensible string of length 5 m. As result, the centre of gravity of the block found to rise a vertical distance of 10 cm. The speed of the bullet after it emerges out horizontally from the block will be

100 m s^-1

80 m s^-1

120 m s^-1

160 m s^-1

View Solution

A stone is dropped from a height of h. It hits the ground with a certain momentum P. If the same stone is dropped from a height 100% more than the previous height, the momentum when it hits the ground will change by:

41%

200%

100%

68%

View Solution

Concepts Covered - 1

Linear Momentum

Linear momentum of a body is the quantity of motion contained in the body.
It is measured in terms of the force required to stop the body in unit time.
If a body of mass m is moving with velocity v, then its linear momentum p is given by p=mv.
It is a vector quantity and its direction is the same as the direction of the velocity of the body.
S.I. Unit : kg-m/sec
Dimension- MLT^-1
If two objects of different masses have the same momentum, the lighter body possesses greater velocity.