A shopper pushes a grocery cart 21.0 m at constant speed on level ground, against a 31.0 N frictional force. He pushes i

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A shopper pushes a grocery cart 21.0 m at constant speed on level ground, against a 31.0 N frictional force. He pushes i

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A Shopper Pushes A Grocery Cart 21 0 M At Constant Speed On Level Ground Against A 31 0 N Frictional Force He Pushes I 1
A Shopper Pushes A Grocery Cart 21 0 M At Constant Speed On Level Ground Against A 31 0 N Frictional Force He Pushes I 1 (32.73 KiB) Viewed 17 times
A shopper pushes a grocery cart 21.0 m at constant speed on level ground, against a 31.0 N frictional force. He pushes in a direction 27.4° below the horizontal. a) What is the work (in J) done on the cart by friction? J b) What is the work (in J) done on the cart by the gravitational force? c) What is the work (in J) done on the cart by the shopper? d) Find the force the shopper exerts (in N), using energy considerations. (Enter the magnitude.) N e) What is the total work (in J) done on the cart?
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