What is the angle between frictional force and instantaneous velocity of the body moving on a rough road?

What is the angle between vectors veca and vecb ?

Distinguish between average velocity and instantaneous velocity.

What is the difference between critical velocity and terminal velocity.

What is the angle between (bari+barj) and (bari-barj) ?

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

Give -the magnitude and direction of the net force acting on a car moving with a constant velocity of 30 km/h on a rough road.

What is the differences between angular displacement and angular velocity?

What is the relation between applied force and momentum produced in a body?

What is difference between viscosity and friction?

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