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i) Why does a horse have to apply more force to start a cart than to keepmoving ? |
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Answer» When thehorse is applying force to startthecartithasto overcome static friction and to keep thecartin motion,thehorse hasto overcome sliding friction. But static frictionis morethan sliding friction ,so thehorse, pulling acart has to applyagreater force to startthecartthan to keep the cartin motion. |
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