Question

What is frictional force ???

Answer 1

Answer:

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction

Answer 2

Answer:

FRICTIONAL FORCE

• It is normally called as friction.
• Friction always oppose the relative motion or tendency of relative motion between two contact surfaces.
• Friction force is the component of net contact force tangential or parallel to surface .
• Direction of friction is always tangential to surface.

THERE ARE THREE TYPES OF FRICTION

1. Static friction (fs)

• It is act when there is no relative motion between contact surface or body is at rest.
• Magnitude and direction of static friction is self adjusting.

2.Limiting friction (fl)

• Body is just begin to slide (J.B.T.S).
• Minimum force required to slide the body.
• Maximum value of static friction.

3.Kinetic / Sliding friction (fk)

• There is relative motion between contact surface of body is in motion.