A 7 kg block is pushed across a horizontal surface by the 45 N force shown in the diagram below. The block moves at a constant velocity of 2 m/s. How big is the coefficient of kinetic friction between the block and the surface?
Added by Rici V.
Step 1
First, we need to find the normal force acting on the block. Since the block is moving horizontally, the normal force is equal to the gravitational force acting on the block. So, normal force (N) = mass (m) × acceleration due to gravity (g). Show more…
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