A box being pushed with a force of 85N slides along the floor with a constant speed. What is the force of sliding friction on the box.
Physics · Middle School · Tue Nov 03 2020
Answered on
Given:
A Box being pushed with a force of 85 N.
Determine the force of sliding friction on the box.
Explanation:
Friction is the force the is applied to a sliding body in order to make the net force equal, or making the net force 0. The velocity of the box that is being pushed is not stated, therefore it can be concluded that the net force acting on the object is equal to 0.
Let friction force = x
Net force = 0
Net force = 85 - Friction Force
0 = 85 - x
x = 85
Final answer: Friction force = 85 N in the opposite direction.
$$ for this question, we actually need to understand the coefficient of friction, c, between the floor and the box, which isn't provided in the question. See if you can find a friction coefficient between some common floor and a smooth box. Use that to answer the question - the force of friction is is F*c