(D) Kinetic friction is less than limiting friction.

Matching block type LIST - I (a) Two rotating discs are brought in contact coaxially (b) Contact force on a body placed in on rough surface (c ) To continue a motion is easier than to initiate the motion (d) For a Static friction less than limiting friction LIST - II (e ) Generated friction is equal to appliedexternal force in magnitude (f) Loss of Rotational KE is transformed partly to heat (g) The resultant of normal reaction and friction (h) Kinetic friction is less than static friction

Assertion : The value of dynamic friction is less than the limiting friction. Reason : Once the motion has started, the inertia of rest has been overcome.

Static friction is more than sliding friction.

Define frictional force and explain it by taking an example. Plot a graph of frictional force against applied force and explain why kinetic friction is lesser than static friction

What is limiting friction?

"The dynamic friction is a little less than the limiting friction ". Why ?

Assertion : It is difficult to move a cylce along the roda with its brakes on . Reason : Sliding friction is greater than rolling friction.

A : It is difficult to move a cycle along a road with its brakes on. R : Sliding friction is greater than rolling friction.

A : During horizontal circular turn of a car, the centripetal force required should be less than the limiting friction between its tyres and road. R : The centripetal force to car is provided by the frictional force between its tyres and the road.

Assertion : Angle of repose is equal to angle of limiting friction. Reason : When the body is just at the point of motion, the force of friction in this stage is called as limiting friction.