SOLUTION: You push a 50 kg block of wood across a flat concrete driveway, exerting a constant force of 300 N. If the coefficient of kinetic friction between the wood and concrete is .5, what

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Question 892680: You push a 50 kg block of wood across a flat concrete driveway, exerting a constant force of 300 N. If the coefficient of kinetic friction between the wood and concrete is .5, what will be the acceleration of the block?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
F - force you exert
F%5Bf%5D - friction force in opposite direction of motion
Sum the forces.
F-F%5Bf%5D=ma
300-mu%2Amg=ma
300-0.5%2850%29%289.8%29=50a
50a=300-245
a=55%2F50
a=1.1m%2Fs%5E2