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Jill does 270 Joules of work pulling the rope on a pulley to lift a crate The output work of the pulley is 235 Joules What is the efficiency of the pulley?
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yuscdecdauy
yuscdecdauy
Wiki User
∙ 9y agoThe idea is to divide the output work by theinput work.
yuscdecdauy
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Anonymous
The idea is to divide the output work by theinput work.
yuscdecdauy
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What is the efficiency of a pulley system when its work out equals 100 joules and its work in equals 150 joules?
If the input energy is 210 joules and the efficiency of the system is 30%,then the output energy is30% of 210 = (0.3 x 210) = 63 joules.
A person does 50j of work to lift a crate using a pulley. the pulley's work output is 42j. What is the pully's mechanical efficiency?
ME=work output/ work input x 100%ME=42/50(100)ME=84
What is the efficiency of the pulley system in percent?
The efficiency of a pulley system depends on how it is set up. Be specific.
What type of advantage described the ability of a machine to increase output force?
Mechanical advantage is the greater outputted force than inputted force that is generated by using a machine. One example is pulling a pulley to create a much greater output force on the other side that a person could not lift without a pulley.
What type of machine is used to get a flag up a flagpole?
a flag pole is a pulley
What is the efficiency of a pulley system when its work out equals 100 joules and its work in equals 150 joules?
If the input energy is 210 joules and the efficiency of the system is 30%,then the output energy is30% of 210 = (0.3 x 210) = 63 joules.
What is the efficiency of the pulley system?
If the pulley is frictionless the angle does not matter, the tension in the rope will be the same on both sides of the pulley. If there is friction in the pulley however then you want to reduce the friction as much as possible. You do that by creating as large an angle between the two ropes as possible.
A person does 50j of work to lift a crate using a pulley. the pulley's work output is 42j. What is the pully's mechanical efficiency?
ME=work output/ work input x 100%ME=42/50(100)ME=84
How do you find the mechanical efficiency of a pulley?
you have to do: work (output) divided by work (input) = F x d (output) divided by F x d (input)
What is the efficiency of the pulley system in percent?
The efficiency of a pulley system depends on how it is set up. Be specific.
What is a pulley in science?
It is a wheel that allows for the vector (direction) of a force to be changed. So if I was pulling down on a pulley, the pulley could turn that into me pulling something up.
What type of advantage described the ability of a machine to increase output force?
Mechanical advantage is the greater outputted force than inputted force that is generated by using a machine. One example is pulling a pulley to create a much greater output force on the other side that a person could not lift without a pulley.
What is the efficiency of a pulley?
i dont know the correct answer
What is the mechanical efficiency of a pulley?
i dont know the correct answer
What type of machine is used to get a flag up a flagpole?
a flag pole is a pulley
What type of pulley would increase the output force?
A pulley system that has multiple pulleys in line with each one having its output drive the next will increase the force. This would be called a tackle pulley.
What are the uses of a single pulley?
AnswerA single pulley can change the direction of a pulling line. The direction change may help in pulling the line over a corner or around an obstacle. Or the direction change may allow better use of the available pulling force. Also, the single pulley can relocate the pulling point.For example, suppose we wish to lift a weight some distance into the air. If I am the pulling force, then my first problem is that I cannot lift the weight any higher than I can reach. But if the pulling line is looped over a pulley some distance above my head, relocating the pulling point, I can potentially lift the weight just about up to the pulley's height. And now the pulley has given me another advantage. I can leverage my own weight, pulling down on the line, to lift the weight upward.
