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A person pushes a 15.1-kg (b) Number (c) Number (d) Number
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m 15.1 kg, d 22.3m, 31.3. f 30.7 N F cos 0 F sin a) the net horizontal force acting on cart is Thus, Using equation (1), the magnitude of the force exerted by the shopper on cart is (30.7 N)/cos31.3 - 35.93 N b) The work done by the pushing force is - (30.7 N (22.3 m) 684.61 J c) The work done by the frictional force is

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