A fan is set on a desk next to a stack of paper. The fan is turned on and then turned
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Answer:
Coefficient of static friction ,μs = 0.15
Coefficient of kinetic friction ,μk = 0.089
Explanation:
Given that
m = 1.7 kg
Static friction :
The force required to start the motion F= 2.6 N
We know that when book is in rest condition then static friction force act on it.
We know that the maximum value of the static friction force
fr = μ m g
At limiting condition
F= fr
2.6 = μ m g
2.6 = μ x 1.7 x 9.81
μ = 0.15
Kinetic friction :
F= 1.5 N
When the book is in moving condition then kinetic friction force act on it.
We know that the maximum value of the kinetic friction force
fr = μ m g
F= fr
= μ m g
1.5 = μ x 1.7 x 9.81
μ = 0.089
Coefficient of static friction ,μs = 0.15
Coefficient of kinetic friction ,μk = 0.089