While moving into her dorm, Ellen pushes a box full of books 10m down the hall...
While moving into her dorm, Ellen pushes a box full of books 10m down the hall with a constant force of 95N directed downward 20 degree with respect to horizontal. The box moves with constant velocity.
(A)Draw a sketch showing the force and distance vectors
(B)What is the work done by Ellen on the box?
Homework Answers
A)FBD attached:
B)Work done will be:
W = F d cos(theta)
W = 95 x 10 x cos20 = 892.71 N
Hence, W = 892.71 N
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