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Pulleys
Page 2
Questions (144)
A moving company wants to lift a piano to the second story of a house and has three pulley set ups to choose from
1 answer
asked anonymously
25 views
to lift a load to the roof you apply 21 n of force to a pulley . the puley applies 21 n of force to the load what is the
2 answers
asked by
help
1,039 views
A window washer pulls herself upward using the bucket-pulley apparatus. The mass of the person plus the bucket is 69 kg.How hard
2 answers
asked by
DJ
1,051 views
A block of mass 3.1 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 14 cm. Treat the pulley as a disk.
1 answer
asked by
John
948 views
NEED HELP ON THE ANSWER OF THIS PROBLEM
THE EFFICIENCY OF THE PULLEY DECREASES WITH A COEFFICIENT OF FRICTION OF 2.0 THE
1 answer
asked by
AMBER
894 views
Two construction workers each of mass m raise themselves on a hanging platform using pulleys as shown above. If the platform has
2 answers
asked by
XYZ
889 views
When the motor in the figure below raises the m = 1010kg mass, it produces a tension of 1.04E+4N in the cable on the right side
1 answer
asked by
Nora
886 views
A boat is pulled into a dock by means of a rope attached to a pulley on the dock. The rope is attached to the front of the boat,
1 answer
asked by
Joe
860 views
You have a pulley 13.9 cm in diameter and with a mass of 1.7 kg. You get to wondering whether the pulley is uniform. That is, is
1 answer
asked by
Colin
838 views
A 1.7kg block and a 2.7kg block are attached to opposite ends of a light rope. The rope hangs over a solid, frictionless pulley
3 answers
asked by
Sarah
730 views
Draw a block and tackle system of pulleys with a velocity ratio of 5 is used to raise a mass of a 25kg through a vertical
4 answers
asked by
Sherif
716 views
a labourer raised a load of mass 200kg by a system of pulley he exert a force of 600n on the rope calculate (1)the velocity
1 answer
asked by
JOEL HOPE
679 views
The efficient of a single fixed pulley is 80% find its mechanical advantage
2 answers
asked by
Silas
662 views
if the pulleys are massless and frictionless and the rope is of negligible mass, and aristotle wanted to raise the 332 newton
2 answers
asked by
Jen
659 views
a man has only 4 simple pulleys to lift a heavy load of 6000N. in roder to lift the load easily, he combines the pulleys (3
5 answers
asked by
ashlee
655 views
A man pulls a rope over a simple pulley attached to the bow of a rowboat. The man’s hands are 8 feet above the water and the
2 answers
asked by
jonh
613 views
For a single movable pulley with a mechanical advantage of 2, how much rope must be pulled to lift a 150 neuton load 2 meters
2 answers
asked by
Kayla
600 views
A large engine with mass of 400 kg must be lifted 3 meters out of a truck for repair. A normal mechanic can lift with about 250
7 answers
asked by
PizzaIsYum
561 views
The pulley in Figure P8.59 has a moment of inertia of 7.0 kg·m2 and a radius of 0.50 m. The cord supporting the masses m1 and
2 answers
asked by
Anonymous
551 views
Two blocks hang from strings going around pulleys of different diameter that are connected, as shown in the figure. The large
2 answers
asked by
Anonymous
540 views
the descending pulley has a radius R and mass M.find the acceleration of block of mass m placed, on the smooth surface and
2 answers
asked by
riya
519 views
When you have more pulleys does the mechanical advantage and efficiency increase or decrease?
5 answers
asked by
Jordan
485 views
Two blocks with masses m1 = 3.9 kg and m2 = 6.7 kg are connected by a string that hangs over a pulley of mass M = 2.2 kg and
1 answer
asked by
John
457 views
A belt connects a pulley of 2-inch radius with a pulley of 5-inch radius. If the smaller pulley turns through 50 radians,
1 answer
asked anonymously
47 views
A pulley system is operating at only 50% efficiency. How could the efficiency be increased? (1 point)
Responses by reducing the
1 answer
asked anonymously
34 views
How can a simple fixed pulley make a job easier?
• by changing the direction at which the force needs to be applied • by
1 answer
asked anonymously
25 views
How can a simple fixed pulley make a job easier?(1 point)
Responses by decreasing the force required to lift the object by
1 answer
asked by
u dont know me
24 views
How can a simple fixed pulley make a job easier?(1 point) Responses
by decreasing the work done by decreasing the force required
1 answer
asked by
.
26 views
How can a simple fixed pulley make a job easier?(1 point)
Responses by changing the direction at which the force needs to be
1 answer
asked by
Somethingishere
34 views
A pulley system is marked with a Mechanical Advantage of 2.5. A worker applies 450 N to the pulley in an attempt to lift a sound
1 answer
asked anonymously
43 views
How does a pulley help transfer mechanical energy?
a. it spreads the load out over two sides, making the load feel lighter b. it
1 answer
asked anonymously
23 views
Alan will use a compound pulley to lift a crate from the floor of his garage to a storage shelf. The shelf is 3.5 meters above
1 answer
asked by
u dont know me
21 views
Alan will use a compound pulley to lift a crate from the floor of his garage to a storage shelf. The shelf is 3.5 meters above
1 answer
asked by
Blue Berry
131 views
A pulley system is only 25% efficient. What could make it more efficient?(1 point) Responses Increasing the mass of the pulley
1 answer
asked by
random
23 views
Lifting the weight without a pulley requires a force of 400 newtons over a distance of 4 meters. How do these values change when
1 answer
asked anonymously
90 views
A student uses a pulley to lift a log. Put the following steps in the correct order to show how they can calculate the pulley's
1 answer
asked by
tim
75 views
In this pulley system, the pulleys will _____ the mechanical force required to lift the block and will change the _____.
(1
1 answer
asked by
joe
31 views
when you want to pull downward to lift something the main advantage of passing a rope upward and threw a single pulley rather
1 answer
asked anonymously
23 views
What is the efficiency of a pulley if 5000 joules of energy results in 3000 joules of work?
3 answers
asked anonymously
21 views
Explain how a pulley works, provide one way I can increase the efficiency of the machine. Be sure to explain the meaning of the
3 answers
asked anonymously
26 views
A student uses a pulley to lift a log. In 1–2 sentences, explain how she can calculate the pulley’s efficiency.(2 points)
1 answer
asked anonymously
33 views
A student uses a pulley to lift a log. In 1-2 sentences explain how she can calculate the pulleys efficiency
1 answer
asked anonymously
32 views
Alan will use a compound pulley to lift a crate from the floor of his garage to a storage shelf. The shelf is 3.5 meters above
1 answer
asked by
.
31 views
Alan will use a compound pulley to lift a crate from the floor of his garage to a storage shelf. The shelf is 3.5 meters above
1 answer
asked by
a helping hand
40 views
Use the picture to answer the question.
An illustration shows a man lifting a box using a pulley. What is accomplished by this
7 answers
asked anonymously
164 views
Lifting the weight without a pulley requires a force of 400 newtons over a distance of 4 meters. How do these values change when
1 answer
asked anonymously
79 views
Use the picture to answer the question.
An illustration shows a man lifting a box using a pulley. What is accomplished by this
7 answers
asked by
vampire
85 views
How does a pulley make work easier when it is used to lift an object?(1 point)
Responses It changes the direction of the lifting
1 answer
asked by
Destinee
30 views
Use the image above to answer the following questions.
a. Will the mechanical force required to lift the block increase or
1 answer
asked anonymously
20 views
Use the picture to answer the question.
An illustration shows a man lifting a box using a pulley. What is accomplished by this
11 answers
asked by
The happy person
83 views
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Parent Categories (11)
Circles
Circles and Curves
Forces and Motion
Mechanical Advantage
Mechanical energy
Mechanical Engineering
Mechanical Systems
Mechanics
Mechanics or Simple Machines
Simple Machines
Work and Energy