Shalu was trying hard to push a 5 kg box kept on the floor; she somehow manages to just push the box while his friend Ankit was enjoying sliding an identical box on the floor. Then choose the correct options

The force of friction acting on shalu's box at that instantis greater than that acting on ankit's box

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The force of friction acting on shalu's box at that instant is less than that acting on ankit's box

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The force of friction acting on shalu's box at that instant is equal to that acting on ankit's box

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None of these

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Solution

The correct option is A
The force of friction acting on shalu's box at that instantis greater than that acting on ankit's box

When Shalu just manages to push the block, at that instant the force of friction acting on the block is static which has reached its maximum value, but in Ankit's case, the force of friction is sliding/dynamic in nature whose value is a bit less than the maximum value of static friction.

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