kittyclaw3544 kittyclaw3544

27-02-2024
Physics

contestada

A block of mass 20 kg is pushed with a horizontal force of 90 N. If the coefficient of static and kinetic friction are 0.4 and 0.3, the frictional force acting on the block is:
a) 70 N
b) 75 N
c) 80 N
d) 85 N

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