Force of Friction: Help on 15kg, 20 Degrees, 20N

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SUMMARY

The discussion centers on calculating the force of friction acting on a 15kg box being pushed at a 20-degree angle with a force of 20 Newtons. It is established that the force of friction opposes the applied force and is equal in magnitude to the applied force when the box is stationary. Therefore, if the box does not move, the force of friction is 20 Newtons, acting in the opposite direction to the applied force.

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A 15kg box is being pushed at an angle of 20 degrees with a force of 20 Newtons. What is the force of friction?
 
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The force of the friction is oppsite to the applied force in the direction of relative motion and equal in magnitude if the box is not moving
 

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