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  4. A body of mass 10 kg is moving with an initial speed of 20 m / s. The body stops after 5 s due to friction between body and the floor. The value of the coefficient of friction is: (Take acceleration due to gravity g =10 ms -2 )

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Q. A body of mass 10kg is moving with an initial speed of 20m/s. The body stops after 5s due to friction between body and the floor. The value of the coefficient of friction is: (Take acceleration due to gravity g=10ms−2 )

JEE MainJEE Main 2023Laws of Motion

Solution:

Correct answer is (b) 0.4