Question

State the laws of limiting friction.
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Answer 1

Laws of Limiting friction :

$\bullet$ The direction of limiting frictional force is always opposite the direction of motion.

$\bullet$ Limiting friction acts tangential to the two surfaces in contact.

And:

$\bullet$ The magnitude of limiting friction is directly proportional to the normal reaction between the two surfaces.

What is limiting friction?

$\bullet$ Limiting friction is the maximum pulling force that a body can sustain without moving.

Answer 2

The direction of limiting frictional force is always opposite the direction of motion.

Limiting friction acts tangential to the two surfaces in contact.

The magnitude of limiting friction is directly proportional to the normal reaction between the two surfaces.