write one sentence each about static and sliding friction
Answers
Explanation:
Static friction is the force which acts between two bodies when a force is applied on a body but there is no relative motion between the surfaces. Static friction opposes impending motion. It is denoted by f
s
. law of static friction is given by:
f
s
≤μ
s
N
where μ
s
is the coefficient of static friction and depends only on the nature of the surfaces in contact. N is the normal force.
STATIC FRICTION - LAW
concept
A block is kept on a horizontal surface. A horizontal force F is applied. The block dose not move. This is because the applied force balances friction. This frictional force which just balances the applied force is called static friction. It is called so as body is still at rest.
If the applied force is increased, the friction also increases and reaches a maximum. Just before the body starts sliding over the surface of another body, the value of frictional force is maximum and this value is called limiting friction.
Answer:
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