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Goshia [24]
3 years ago
11

Quiz Revisions:

Physics
1 answer:
FrozenT [24]3 years ago
7 0

Answer:

fr = 514.5 N,    This force has the opposite direction to the applied force.

Explanation:

Let's propose the solution of the problem using Newton's Second Law, we place a reference frame with the horizontal x-axis

Y axis

         N- W = 0

         N = W

X axis

         F -fr = m a

         

the friction force has the expression

        fr = μ N

        fr = μ mg

       

        fr = 0.35  150  9.8

        fr = 514.5 N

This force has the opposite direction to the applied force.

The student's answer is incorrect because the friction coefficient must be multiplied by the normal

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