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a horizontal force of 300 N is needed to push a crate along the floor at constant speed. What is the friction force on the crate?

Sagot :

Answer:

Since a 100-N force is being used to push the crate in one direction, and there is a total net force of 0, the force of friction acting on the crate must also be 100 N. This frictional force points in the direction opposite of the push.