A mass of 1.78 kg is initially at rest upon a horizontal surface. An applied force of 16.4 N i then acts on the mass. If the coefficient of kinetic friction regarding the system is 0.479, what is the magnitude of the object's acceleration?
mass, m = 1.78 kg
horizontal force, F = 16.4 N (along x axis)
coefficient of kinetic friction, = 0.479
frictional force, fr = N
fr = mg
force acting , Fe = F - fr
Fe = 16.4 - (0.479 x 1.78 x 9.8)
Fe = 8.04 n
Fe = ma
a = Fe/m
a = 8.04/1.78
a = 4.52 m/s2
Answer: acceleration 4.52 m/s2
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