Question

1.
Two factors determine the strength of the force of static friction. These are:
a) Speed and light
b)
How fast objects are going and on what surface
c) How big the objects are and how fast they are going
How hard the surfaces push together and the types of surfaces involved​

Answer 1

Answer:

it will help you

Explanation:

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Answer 2

Answer:

Correct option is d) How hard the surfaces push together and the types of surfaces involved​.

Explanation:

In the case of friction, it can disrupt the motion of objects or slow down moving objects. The first is static friction! Static means at rest, so the object will remain in place until enough force is applied to overcome the force of static friction (the coefficient of static friction in the normal force).  The coefficient of static friction depends on the surface the object is resting on, and the natural force is the electromagnetic force that keeps us all from falling into the hot, melting core of the Earth!

Overcoming static friction almost always results in kinetic friction, which is "dynamic" friction. This is the friction that slows your car down when you hit the brakes or stops it when you slip on the carpet with your sock.

Static friction is the frictional force that tries to oppose the motion of a stationary object. It is determined by the coefficient of static friction and the natural reaction force between two surfaces in contact. A static coefficient of friction is applied until the object begins to move (relative motion occurs between two surfaces in contact). During motion, a coefficient of dynamic friction is applied, the force is called dynamic friction (less than static friction for the same normal reaction force between the same two surfaces).

Why do you think rolling friction is less than sliding friction?

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State the meaning of the term i) rolling friction ii) fluid friction​

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