when an apple is resting on top of a table, how many force pairs (number of pairs not individual forces)act on the apple?

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15-12-2022
Physics

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when an apple is resting on top of a table, how many force pairs (number of pairs not individual forces)act on the apple?

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Srivastava Srivastava · Answer 1 · 2022-12-23T08:59:22-05:00

The draw of the earth on the apple and the pull of the apple on the earth are forces operating in pairs (number of pairs, not individual forces).

What forces are at work while something is at rest?

Since there is no net force acting on the item while it is resting , the downward force (weight) must counterbalance the force acting upward (normal force). Weight travels downhill, therefore it is always negative. For an item to be at rest, all of the forces must be equal to 0.

Can an object at rest be affected by a force?

According to Newton's first rule, in order to have no net force exerted on an object, it must be at rest. Because if there is a total force acting on the object, it will change velocity. It will accelerate.

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