Can the relative velocity of two bodies be greater than the abS0lute velocity of either?

Why velocity of hot water is greater than velocity of cold water.

Can the velocity of a body negative or zero ?

How can the velocity of a body be changed?

Define relative velocity. When is its value zero ?

At what temperature will the velocity of sound in air be double than the velocity in air at 22^@C ?

Force can change the velocity of a body. Give one example.

What is the velocity of sound in air at 0^@C .

What is escape velocity? Find an expression for the escape velocity of a body when projected from the surface of the earth. Show that the escape velocity form the earth's surface is about 11.2 km/sec.

Deduce the relation between the orbital velocity of a body moving round the earth just over its surface and its escape velocity.

For a body moving along a straight line, the average velocity is equal to its instantaneous velocity. The motion of the body is