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  3. An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal table.

. An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal table.

The force required to keep the object moving with the same velocity is

(a) 32 N

(b) 0 N

(c) 2 N

(d) 8 N

 

Best Answer

Answer: (b) 0 N

Here the friction is opposing the force hence no force is required to keep the object in uniform motion. Hence, the answer is 0 N.

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