Laws of Motion ...

..... of Roads is done by raising the outer edges of the road slightly above the level of inner edge, to avoid accidents.

A horse continues to apply a force in order to move a cart with a constant
speed. This is because:

A body of mass $$M$$ collides against a wall with velocity $$V$$ and rebounds with the same speed. Its magnitude of change in momentum is:

China wares are wrapped in straw or paper before packing. This is the application of concept of :

A particle of mass $$m$$ is projected with a velocity $$6\hat { i } +8\hat { j } $$. Then the magnitude of change in momentum when it just touches ground will be

A system of $$n$$ particles is free from any external force. Which of the following is true for the magnitude of the total momentum of the system?

S.I. unit of momentum is :

A force of 100 N acts on a body of mass 2 kg for 10 s. The change in momentum of the body is:

A pendulum hangs from the ceiling of a jeep moving with a speed, $$v$$, along a circle of radius, $$R$$. Find the angle with the vertical made by the pendulum.

A stone tied to a string of length $$L$$ is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time the stone is at its lowest position and has a speed $$u$$.The magnitude of change in its velocity as it reaches a position, where the string is horizontal is