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3 years ago

Physics is really confusing...is there anyone that can show it to me?

Physics

1 answer:

coldgirl [10]3 years ago

3 0

Answer:

1.0×10³ N

Explanation:

μs is the static coefficient of friction. That's the friction that acts on a stationary (non-moving) object when being pushed or pulled.

μk is the kinetic coefficient of friction. That's the friction that acts on a moving object.

To budge the pig (while it's still stationary), we need to overcome the static friction.

F = N μs

For a non-moving object on level ground, the normal force N equals the weight.

F = mg μs

Given m = 130 kg and μs = 0.80:

F = (130 kg) (9.8 m/s²) (0.80)

F = 1019.2 N

Rounded to two significant figures, the force needed to budge the pig is 1.0×10³ N.

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