Asked by Ryan
A 7.5-kg box is being lifted by means of a light rope that is threaded through a single, light, frictionless pulley that is attached to the ceiling. If the box is being lifted at a constant speed of 2.0m/s, what is the power delivered by the person pulling on the ropre? If the box lifted at constant acceleration from rest on the floor to a height of 1.5m above the floor in 0.42s what average power is delivered by the person pulling the rope?
Answers
Answered by
bobpursley
power= force*distance/time= mg*velocity
If being accelerated, then force=mg+ma
If being accelerated, then force=mg+ma
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.