" Work done by force of friction is "

Consider a block of mass m that slides down the different inclined planes having same base legth L and same coefficient of friction. STATEMENT-1 Work done by force of friction will be same for the motion of the two inclined planes. STATEMENT-2 Frictional force is a conservation force.

Consider a block of mass m that slides down the different inclined planes having same base legth L and same coefficient of friction. STATEMENT-1 Work done by force of friction will be same for the motion of the two inclined planes. STATEMENT-2 Frictional force is a conservation force.

A horizontal force of 5N acts on a body of mass 2kg initally at rest. It starts moving on a table having coefficient of friction =0.2 Calculate (i) work doen by the applied force in 5s (ii) work done by force of friction in 5s (iii) work done by net force is 5s (iv) change in K.E. of the body in 5s . What do you conclude from this ?

Work done by the force of friction

Assertion: Work done by the force of friction in moving a body around a closed loop is zero. Reason: Work done does not depend upon the nature of force.

Assertion: Work done by the force of friction in moving a body around a closed loop is zero. Reason: Work done does not depend upon the nature of force.

A block of mass m is slowly carried on a inclined plane by a force F which always acts along the tangent to the plane. If the co-efficient of friction between the block and incline be mu , then work done by force of friction while carrying block from bottom of the plane to the top will be :

A body of mass 10 kg is moving on a horizonal surface be applying a force of 10 N in the forward direction. The body moves with a constant velocity of 0.2ms^(-1) . Work done by the force of friction in the first 10 seconds is

A body of mass 10 kg is moving on a horizonal surface be applying a force of 10 N in the forward direction. The body moves with a constant velocity of 0.2ms^(-1) . Work done by the force of friction in the first 10 seconds is

A block of mass m is slowly carried on a inclined plane by a force F which always acts along the tangent to the plane. If the co-efficient of friction between the block and incline be mu , then work done by force of friction while carrying block from bottom of the plane to the top will be : A. dependent on the actual shape of the path between point A and B. B. will have a total positive value C. will not change if force F is not applied along the tangent to the plane always. D. independent of the actual shape of the path between points A and B.