Question

More friction is required to push a box when it's at rest than when it starts moving . Why??​

Answer 1

Answer:

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Explanation:

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Answer 2

Explanation:

It is important to understand the difference between static and kinetic friction.

When an object is at rest, it takes more force to get it to start moving than to keep it moving. If you match the amount of static friction that can be generated when the object is at rest, it will not move because there is zero net force; the force applied must be greater than the static friction in order to initiate motion. Once the object begins moving, the force required to keep it moving decreases. If you match the force of kinetic friction, the object moves at a constant velocity because there is again no net force. Any more force will cause acceleration, while any less will cause deceleration.