Question

which of the following friction has Self adjusting force a)rolling friction b ) static friction c ) sliding friction d ) Fulid friction




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Answer 1

Answer:

There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest. Fluid friction occurs in fluids, which are liquids or gases.

Static friction is considered a self adjusting force because it wants to the objects to remain at rest and not move. Therefore, if an external force is applied, the static friction force will equal the magnitude of the external force, until it surpasses the threshold of motion.

Answer 2

Answer:

Self adjusting force b ) static friction

Explanation:

• Friction: Friction is the force which opposes the motion of any object. Friction can be of different types- static friction, rolling friction, sliding friction, fluid friction etc.
• When an object slides over a surface then the friction involved is sliding friction and in case of rolling over a surface, the friction is rolling friction.

                In these cases frictions are overcome by any other force and object moves. So they are not self adjusting force.

• Fluid friction is involved between the layers of the fluid. Here one layer moves over another layer, so friction is adjusted by other force.
• Static friction is involved in case of stationary object. There is no other force involved. So this is a self adjusting force.

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