It is difficult to walk on the ice than on the road because :

The weight of an object is due to

A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because

The unit of the ratio between thrust and impulse is same as that of

Work is said to be one Joule when a force of

What is the effect of pressure of a human body on sand ?