Question: Shopping cart work Part B | Problem A shopper pushes a grocery cart 2 0 . 0 m at constant speed over a level floor,

Shopping cart work Part B| Problem
A shopper pushes a grocery cart 20.0 m at constant speed over a level floor, against a 35.0 N frictional force. His pushing force is directed at an angle of 25 degrees below the horizontal.
What is the work done on the cart by the gravitational force?

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