Homework Help: Physics

Posted by Karen on Monday, November 2, 2009 at 1:00pm.

A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (3.0 m, 4.1 m) while a constant force acts on it. The force has magnitude 2.4 N and is directed at a counterclockwise angle of 100° from the positive direction of the x axis. How much work is done by the force on the coin during the displacement?
___________ J

Physics - Anonymous, Wednesday, April 21, 2010 at 10:59pm
w=F_x D_x+F_y D_y
=2.4¡Á3¡Ácos¡¼100¡ã¡½+2.4¡Á4.1¡Ásin¡¼100¡ã¡½
=8.44 J

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