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May 28, 2015

Homework Help: Physics

Posted by charlie on Thursday, January 5, 2012 at 10:53pm.

You pull on a rope that is attached to a box. The rope makes an angle of 25 degrees with the ground. You are pulling the box at a constant velocity. The force you are pulling with is 78N. The box weighs 25N. You pull the box a displacement of +16m.

What is the work done by you?
I got 7.25
What is the work done by friction?

What is the work done by the normal force?
I got 0
What is the work done by gravity?

can someone help me get the rest of this

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