A box full of books rests on a wooden floor. The normal force the floor exerts o
ID: 1535646 • Letter: A
Question
A box full of books rests on a wooden floor. The normal force the floor exerts on the box is 237.0 N. You push horizontally on the box with a force of 121.0 N, but it refuses to budge. What can you say about the coefficient of static friction between the box and the floor? mu_s > ________ If you must push horizontally on the box with a force of at least 137.0 N to start it sliding, what is the coefficient of static friction? ________ Once the box is sliding, you only have to push with a force of 118.0 N to keep it sliding. What is the coefficient of kinetic friction? _________________Explanation / Answer
step;1
Given that
normal force N=237 N
force f=121 N
now we find the coefficient of static friction
the coefficient of static friction =121/237=0.511
(b) ans
the force f=137 N
now we find the coefficient of static friction
the coefficient of static friction =137/237
=0.58
(c) ans
the frictional force =118 N
now we find the coefficient of kinetic friction
the coefficient of kinetic friction =118/237=0.498
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