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While moving a 13 kg refrigerator, an upward force of 28 N is applied 52 degrees above the horizontal, so that it accelerates from rest at 1.2 m/s2. What is the frictional force between the refrigerator and the floor?

Respuesta :

Answer:

the frictional force is 1,63 N

Explanation:

We use the second law of movement proposed by Newton and with the help of a free body diagram, we can get the equations for the solution.

In the image attached, we can see a completely analysis of the refrigerator under the different forces and the equations. We must understand the relationship between the normal force and the kinetic friction coefficient.

Ver imagen rafaleo84
Ver imagen rafaleo84