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3 years ago

All of the following show friction as a useful force, except

Physics

1 answer:

Troyanec [42]3 years ago

3 0

having to push a rough and heavy box across the floor to move it

Explanation:

Friction is not a useful force because we have to exert even more force to push a body that is rough and heavy across the floor to move it.

Frictional force is a force that opposes the motion of a body.
It costs more and uses more energy to push a rough and heavy box on surface because of friction.
This wastes energy in systems that deals with pushing.

Friction is useful in that:

the heat energy produced when two surfaces rub together is very useful.
the friction between your feet and the floor keeping you from slipping and makes walking possible.
the tread on tires helping the moving vehicle slow down and stop when necessary.

learn more:

Friction brainly.com/question/7174363

#learnwithBrainly

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2 years ago

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