STATIC AND KINETIC FRICTION

STATIC FRICTION & KINETIC FRICTION

NORMAL CONSTRAINT AND ITS APPLICATION |TYPES OF FRICTION| KINETIC FRICTION |STATIC FRICTION

COMPLETETION TYPE QUESTIONS: The coefficient of kinetic friction is _____ the coefficient of static friction.

A 10kg block is resting on the horizontal surface. Horizontal force F is applied on it for 7s. The variation of F in N with time in seconds is shown if Fig. The coefficients of static and kinetic friction are both 0.50. Velocity of the block in m/s)as t = 4s is –

Friction |Static Friction |Limiting Friction|Kinetic Friction

Use of ball bearings converts A. Kinetic friction to static friction B. Kinetic friction into rolling friction C. Static friction to Kinetic friction D. Rolling friction into Kinetic friction

Give any two salient features of static Friction and Kinetic Friction.

A block of mass 2 kg is pressed against a rigid vertical wall by a horizontal force of 100 N. If co-efficient of static and kinetic friction are each equal to 0.3 then find the magnitude and direction of frictional force on the block.

A block of mass 2 kg is pressed against a rigid vertical wall by a horizontal force of 100 N. If co-efficient of static and kinetic friction are each equal to 0.3 then find the magnitude and direction of frictional force on the block.