A block with a mass of 4 kg is sliding across a horizontal surface with an...
A block with a mass of 4 kg is sliding across a horizontal surface with an initial speed of 5 m/s. Because of kinetic friction, the energy of this system will decrease linearly with the distance travelled by the block.
a. What is the magnitude of the force of kinetic friction (in N) acting on the block if the block moves 4 m before coming to a stop?
b. What is the average power (in W) supplied by the force of kinetic friction acting on the block if the block moves 4 m before coming to a stop?
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A block with a mass of 4 kg is sliding across a horizontal
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