Hello everyone..so I am new to this forum. I missed the first couple weeks of my AP physics class due to injury and have so much work to catch up on. The problem is, I need a lot of help even though I'm still at a pretty basic level. I keep mixing up a lot of things.(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

"A 2.0 kg wood box slides down a vertical wood wall while you push on it at a 45 degree angle. What magnitude of force should you apply to cause the box to slide down at a constant speed?"

So we know that there are 4 forces working on this object.

Applied force, Normal Force, Force due to Gravity, and Force of Friction.

We also the angle at which we're pushing the object against the wall: 45 degrees.

2. Relevant equations

F = ma

then what?

3. The attempt at a solution

Well I drew the diagram, and I know that because the object is moving down at a constant speed, the acceleration is 0. Therefore due to Newton's 2nd law, F=ma, the net force is 0. I don't know how this helps me though. However, I don't know what it means to find the magnitude, and I don't know how to find the values of any of the 4 forces. And what does the angle of his push have to do with anything?

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Magnitude of force on a sliding object- help pleaaase!

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