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April 19, 2014

Homework Help: PHYSICS PLEASE HELP !!!!!

Posted by Amanda on Thursday, October 27, 2011 at 2:46pm.

An object with a mass of 13 kg slides 5 meters across a horizontal surface with a coefficient of kinetic friction of 0.38. For the duration of the slide an external force, F1, acts on the mass in the positive y direction while another force, F2, has a magnitude of 67 Newtons and is angled at 28 degrees above the x axis. The net work done over the distance of 5 meters, 499 Joules. What is the magnitude of F1 in Newtons?

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