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Colt1911 [192]
3 years ago
9

What is the type of friction force if the object appears just about to start motion?why?

Physics
1 answer:
aliina [53]3 years ago
3 0

Sliding friction is friction that acts on objects when they are sliding over a surface. Sliding friction is weaker than static friction. That's why it's easier to slide a piece of furniture over the floor after you start it moving than it is to get it moving in the first place.

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Explanation:

A load of 20N is lifted through a height of 8m by a machine.If the effort of 80N moves a distance of 6m.Calculate the efficiency percentage of the machine

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