The coefficient of kinetic friction is ∪ = 3.699
What is Kinetic Energy?
The energy an object has as a result of motion is known as kinetic energy in physics. It is described as the effort required to move a mass-determined body from rest to the indicated velocity. The body holds onto the kinetic energy it acquired during its acceleration until its speed changes.
Given,
m = 50 kg
Force = 2.30 x 10^2 = 230N
Distance = 5.55m
Work done = 2.50 x 10^2 = 250 j
Using work energy principle:
F x d - ∪ x m x d = work done
230 x 5.55 - ∪ x 50 x 5.55 = 250
1276.5 - ∪ x 277.5 = 250
1276.5 - 250 = 277.5∪
1026.5 = 277.5 ∪
∪ = 1026.5 / 277.5
∪ = 3.699
Hence, the coefficient of kinetic friction is ∪ = 3.699
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