A person lifts a 4.7 kg cement block a vertical distance of 0.89?

Question

and then carries the block horizontally a distance of 14.60 m.

(a) How much work is done by the person in the process?
(b) How much work is done by gravity in the process?

Answer 1

a) 4.7*9.81*0.89

b) -4.7*9.81*0.89

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