Question

A horse pulling a cart has to apply a greater force to start the cart than to keep the cart in motion.Why?

Answer 1

HELLO DEAR!!!!
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THE ANSWER IS BECAUSE OF "INERTIA" (first law of motion).....
Because when the object is in rest it's hard to change from rest to motion but after changing we don't hv to put more effort yaaaa it's because of inertia....
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Answer 2

Hello Friend,

This is because when the horse starts pulling cart, the cart is in rest, it means that the irregularities of the wheels of cart and the road is interlocked so it requires greater force to overcome that interlocking but when the cart comes in motion the irregularities do not get sufficient time to get interlock again. So, it is easier for the horse to keep the cart in motion. The main reason for this is FRICTION.

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