   Chapter 4, Problem 20P

Chapter
Section
Textbook Problem

A horizontal force of 95.0 N is applied to a 60.0-kg crate on a rough, level surface. If the crate accelerates at 1.20 m/s2, what is the magnitude of the force of kinetic friction acting on the crate?

To determine
The magnitude of force of kinetic friction on the crate.

Explanation

Given info: The mass of the crate is 60.0 kg. The magnitude of applied horizontal force is 95.0 N. The acceleration of the crate is 1.20ms2 .

The object is acted upon by four forces – applied force, force of kinetic friction, normal force, and the weight of the crate. The free body diagram is given below.

From the above diagram,

ma=FFk

• m is the mass of the block.
• a is the acceleration.
• F is the applied force.
• Fk is the force of kinetic friction.

On re-arranging,

Fk=Fma

Conclusion:

Substitute 60

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started 