Asked by Riley

Two boxes are connected by a cord running over a pulley. Box A is on a table and Box B is hanging off of the pulley. The system is released from rest and Box B drops a distance D.

What is the word done by gravity on box B?
Answered by Riley
is it W=Mass of B X g X D?
Answered by Damon
yes
force of gravity = m g
distance = D
work done by gravity = m g D

Remember the tension in the cord also does work, but that was not asked.
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