Asked by NIQUEFROMDALLAS
I have no idea on how to do either part of these questions please help
(part 1 of 2)
To move a refrigerator of mass 110 kg into a house, a mover puts it on a dolly and covers the steps leading into the house with a wooden plank acting as a ramp. The plank is 8.8 m long and rises 3.6 m. The mover pulls the dolly with constant velocity and with a steady force 730 N up the ramp. How much work does he perform? The acceleration of gravity is 9.8 m/s2 . Answer in units of J.
(part 2 of 2)
What is the minimal work required to lift the refrigerator into the house? Answer in units
of J.
(part 1 of 2)
To move a refrigerator of mass 110 kg into a house, a mover puts it on a dolly and covers the steps leading into the house with a wooden plank acting as a ramp. The plank is 8.8 m long and rises 3.6 m. The mover pulls the dolly with constant velocity and with a steady force 730 N up the ramp. How much work does he perform? The acceleration of gravity is 9.8 m/s2 . Answer in units of J.
(part 2 of 2)
What is the minimal work required to lift the refrigerator into the house? Answer in units
of J.
Answers
Answered by
Damon
730 N * 8.8 m = 6424 Joules
m g h = 110 * 9.8 * 3.6 = 3880 Joules
by the way the efficiency = 3880/6424 = .604 = 60.4 %
m g h = 110 * 9.8 * 3.6 = 3880 Joules
by the way the efficiency = 3880/6424 = .604 = 60.4 %
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.