3 years ago

Book sliding across a frictionless table would never stop moving, even though there is

Physics

1 answer:

Lina20 [59]3 years ago

4 0

Answer:

Yes, this is true, unless there were other outside forces, such as wind.

Explanation:

The First Law of Motion states, "A body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force."

Hope this helped!! :)

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A player uses a hockey stick to push a puck at a constant velocity across the ice. The weight of the puck is 170 N. The

soldi70 [24.7K]

Answer: The minimum force by which player should hit the puck to move it is 0.102 N.

Explanation:

Weight of the puck = 1.70 N

This weight of the puck is the force acting normal to the surface that is:

N = 1.70 N

The coefficient of friction =

Frictional force =

The minimum force by which player should hit the puck to move it is 0.102 N.

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MAVERICK [17]

Answer:

$U_{b}=+7.3*10^{-8}J$

Explanation:

When a particle moves from a point where the potential energy is Ua to point where it is Ub,the change in potential energy is is equal to work done

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Where Wa-b here is negative this means Ub is greater Ua. Therefore potential energy increases

$U_{b}=(+5.4*10^{-8}J )-(-1.9*10^{-8}J)\\U_{b}=+7.3*10^{-8}J$

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Which of the following is the best definition of work?

wel

A. something that happens when a force is applied to an object and its moved

(however all 3 answers are arguebly correct)

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The awnser to your problem would be a as in energy

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