Show that a force that does no work must be a velocity dependent force.

Show that a force that does no work must be a velociy dependent force.

Give one example each of velocity dependent force.

Centripetal force does no work' - explain.

Show that power is the product of force and velocity.

Show that power= force X velocity

The earth moving round the sun in circular orbit is acted upon by a force and hence work must be done on the earth by the force. Explain.

When does a force do work ?

The earth, moving around the sun in a circular orbit, is acted upon by a force and hence work must be done on earth by this force.

The earth, moving around the sun in a circular orbit, is acted upon by a force and hence work must be done on earth by this force.

Which one of the force does not depend on the velocity - frictional force between contact surface of two solid or viscous force ?