Starting from rest, an intern pushes a 47-kg gurney 15 m down

QUESTION

Starting from rest, an intern pushes a 47-kg gurney 15 m down the hall with a constant force of 80 N directed downward at an angle of 35∘ with respect to the horizontal. Ignore friction.What is the work done by the intern on the gurney during the 15-m trip?

 

ANSWER:

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