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A book of mass 0.4 kg is pushed to the left across a table with a force of 2.4 N. Kinetic friction provides a force of magnitude 0.8 N. What is the net force acting on the book? Include magnitude and direction.
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A book of mass 0.4 kg is pushed to the left across a table with a force of 2.4 N. Kinetic friction provides a force of magnitude 0.8 N.

What is the net force acting on the book? Include magnitude and direction. N (answer format example -4 or +4)


(normal force is 3.92 N)



!!!!!!!! PLEASE HELP

User Furkan Omay
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1 Answer

9 votes
9 votes

-1.6 N

Split the forces into those in the x-direction and those in the y-direction. Since the book is not accelerating upward or downward, the net force in the y-direction is zero. Add the two forces in the x-direction (applied force and kinetic friction). This is the net force.

See details:

A book of mass 0.4 kg is pushed to the left across a table with a force of 2.4 N. Kinetic-example-1
User Zilla
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3.1k points
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