once the motion begins

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A block of mass 5 kg rests on a rough horizontal surface. It is found that a force of 10 N is required to make the block just move. However, once the motion begins, a force of only 8 N is enough to maintain
30
Sep
A block of mass 5 kg rests on a rough horizontal surface. It is found that a force of 10 N is required to make the block just move. However, once the motion begins, a force of only 8 N is enough to maintain A block of mass 5 kg rests on a rough horizontal [...]
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Tags: A block of mass 5 kg rests on a rough horizontal surface. It is found that a force of 10 N is required to make the block just move. However , a force of only 8 N is enough to maintain , once the motion begins ,