Posted by **maria** on Thursday, December 1, 2011 at 9:46am.

A desk weighing 80 N rests on the floor. The coefficient of friction between the floor and the desk is 0.25. What is the frictional force between yhe desk and the surface of the floor?

- physics -
**drwls**, Thursday, December 1, 2011 at 10:42am
The friction force is

M*g*Uk

IF the desk is moving. Uk is the kinetic friction coefficent in this case.

The problem should have told you if the desk is moving, and whether the coefficient of friction is static or kinetic.

If the desk is not moving, the applied force equals the friction force.

## Answer this Question

## Related Questions

- Physics - In moving a 35.0 kg desk from one side of a classroom to the other, a ...
- Physics - In moving a 35.0 kg desk from one side of a classroom to the other, a ...
- Physics - a student pushes on a desk with a force of 75 N causing it to begin ...
- physics - Imagine yourself seated on a wheeled desk chair at your desk. Consider...
- PHYSICS - Example 2: a) A desk has a mass of 68.75 kilograms. If the coefficient...
- physics - A 6.110 kg block of wood rests on a steel desk. The coefficient of ...
- Physics - A 4.500 kg block of wood rests on a steel desk. The coefficient of ...
- physics - A 4.170 kg block of wood rests on a steel desk. The coefficient of ...
- Biomechanics - If John was pushing a 300 kg desk across the floor with a ...
- physics - An autographed baseball rolls off of a 1.3 m high desk and strikes the...

More Related Questions