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Nonamiya [84]
3 years ago
13

A horizontal force of 90.0 N is required to push a 75kg object along a horizontal surface at a constant speed. What is the magni

tude of the force of friction. Please show your work I am having troubles.
Physics
1 answer:
Varvara68 [4.7K]3 years ago
6 0
If the object is moving at a constant speed, acceleration is 0. So:

F = ma

F = m\times 0

F = 0

The resultant force is 0. So the force pushing the object must be equal to the friction force acting, so 

Friction = 90 N
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