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A T.V. stand with wheels is placed on a ...

A T.V. stand with wheels is placed on a trolley. What happens if the trolley starts immediately and also if trolley is suddenly stopped?

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When trolley starts immediately the T.V. stand will continue to be in state of rest so it roles backwards where as when trolley is suddenly stopped the T.V. stand continues to be in state of motion so it rolles forward.
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