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A shopper in a supermarket pushes a cart with a force of 35.6 N directed at an angle of 25.7 ◦ downward from the horizontal. Find the work done by the shopper as she moves down a 50.4 m length of aisle. Answer in units of kJ.

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joseaaronlara

Answer:

The answer to your question is W = 1.62 kJ

Explanation:

Data

Force = 35.6N

angle = 25.7°

distance = 50.4 m

Formula

Work = Force x distance x cos Ф

     W = F x d cos Ф

Substitution

     W = (35.6)(50.4) cos 25.7

Simplification and result

     W = 1794.2 cos 25.7

     W = 1616.75 J

Convert Joules to KJ

                         1000 J ----------------- 1 kJ

                         1616.8 J ---------------   x

                         x = (1616.8 x 1) / 1000

     W = 1.62 kJ

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