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A box weighing 660 N is sliding across a cement floor. The coefficient of sliding friction between the box and the floor is 0.15. What is the frictional force?

A. 9g
B. 4,400 N
C. 99 N
D. 99 kg

Answer :

The Frictional force is 99 N; option C.

What is the frictional force?

The frictional force between the floor and the surface is calculated as follows:

Frictional force = coefficient of friction * normal reaction

Frictional force = 660 * 0.15

Frictional force = 99 N

In conclusion, the frictional force is determined from the coefficient of friction and the normal reaction of the box on the floor.

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