Why a horse need to pull harder during the first few steps in pulling the cart?
Limiting friction is greater than dynamic friction.
Sliding friction is greater then rolling friction.
No frictional force acts after the cart comes in motion.
Air friction is greater is greater during first few stops of motion.
A
Limiting friction is greater than dynamic friction.
B
Air friction is greater is greater during first few stops of motion.
C
Sliding friction is greater then rolling friction.
D
No frictional force acts after the cart comes in motion.
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Solution
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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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