Duplicate Question
The question on this page has been marked as a duplicate question.
Original Question
The efficiency of a pulley system is 81 percent. The pulleys are used to raise a mass of 85 kg to a height of 8.5 m. The accele...Asked by Madi
The efficiency of a pulley system is 47 percent.
The pulleys are used to raise a mass of 47 kg
to a height of 7.0 m.
The acceleration of gravity is 9.81 m/s
2
.
What force is exerted on the rope of the
pulley system if the rope is pulled for 28 m in
order to raise the mass to the required height?
Answer in units of N.
The pulleys are used to raise a mass of 47 kg
to a height of 7.0 m.
The acceleration of gravity is 9.81 m/s
2
.
What force is exerted on the rope of the
pulley system if the rope is pulled for 28 m in
order to raise the mass to the required height?
Answer in units of N.
Answers
Answered by
Damon
work done by puller person
= F * 28
work done lifting weight
= .47 * F * 28 = 13.16 F
so
13.16 F = 47 * 9.81 * 7
= F * 28
work done lifting weight
= .47 * F * 28 = 13.16 F
so
13.16 F = 47 * 9.81 * 7
There are no AI answers yet. The ability to request AI answers is coming soon!