Why a horse need to pull harder during the first few steps in pulling the cart?

Limiting friction is greater than dynamic friction.

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Sliding friction is greater then rolling friction.

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No frictional force acts after the cart comes in motion.

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Air friction is greater is greater during first few stops of motion.

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Solution

The correct option is A Limiting friction is greater than dynamic friction.
In firs few steps , horse has to overcome the limiting friction ,after this dynamic friction comes into play , which is less than limiting friction therefore horse need to pull harder during the first few steps in pulling the cart .

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Similar questions

Q. Case I: A block of mass 1 kg is placed on a rough horizontal surface.
Case II: A block of mass 1 kg is placed on a rough horizontal surface and another identical block is kept over it.
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Q. Why does a horse have to pull a cart harder during the first few steps of motion?

Which of the following statements is incorrect?
(a) static friction is greater than rolling friction
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