Homework Help: AP Physics

Posted by Abagail on Friday, November 12, 2010 at 9:29pm.

A husband and wife take turns pulling their child in a wagon along a horizontal sidewalk. Each exerts a constant force and pulls the wagon through the same displacement. They do the same amount of work, but the husband's pulling force is directed 50° above the horizontal, and the wife's pulling force is directed 31° above the horizontal. The husband pulls with a force whose magnitude is 62 N. What is the magnitude of the pulling force exerted by his wife?

AP Physics - drwls, Friday, November 12, 2010 at 9:35pm
Since they do the same amount of work pulling equal distances, they both pull with the same force component along the horizontal direction of motion.

F(man)*cos 50 = F(woman)*cos31

F(woman) = F(man)*[cos50/cos31]
Physics - Jen, Sunday, January 6, 2013 at 12:25pm
0.21

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