A single fixed pulley and a movable pulley both are seperately used to lift a load of 50kgf to the same height. Compare the efforts applied.

Q: A rope pulley system with 3 pulleys in the top and 2 in the bottom is required to lift a load. If…

A: Calculate the useful effort.

Q: Name the pulley which has no gain in mechanical advantage. Explain, why is such a pulley then used?

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Q: What will be the work, in Joule, done in stretching the spring through 40 mm if 10 N force is…

A: We have to find the amount of Work done(W) in stretching the spring 40 mm=40×10-3 m if 10 N force(F)…

Q: What is the amount work that is done by lifting 90 kg stone block from a small piller that is 1.0 m…

A: The mass of the stone (m) = 90 kg The height of the stone is lifted (h) = 1m And the distance of the…

Q: In a single fixed pulley, if the effort moves by distance x downwards, by what height is the laod…

A:

Q: Conservative forces lose no mechanical energy to

A: Any energy of the system is lost into the heat energy. In the case of the conservative force, there…

Q: If an input of 100 J in a pulley system increases the potential energy of a load by 60 J, what is…

A: Given that Input energy = 100 J Output energy = 60 J

Q: Give reason why in a single fixed pulley, the velocity is always more than the mechanical advantage.

A: The expression for the velocity ratio,

Q: the hammer of a pile driver weighing 72N falls through a height of 5m. if it drives a nail 18cm into…

A: The third equation of motion is  v2 = u2 + 2 a s  where, v is the final velocity, u is the initial…

Q: ift twice its mass or 2m?  What other examples of Mechanical Advantage are an average t

A: How can a mass, m, lift twice its mass or 2m?  Explain:- The mass m  can be left the mass 2m, menas…

Q: If an input force of 202 N is applied to the handles of the wheelbarrow with a mechanical advantage…

A: The input force applied to the handles is, The mechanical advantage of the wheelbarrow is,

Q: ft·lb to hr kg•m power of 200

A: 1 Pound Foot per hour is equal to 50 kilogram Meter per Second

Q: A machine does 230 J of work in 30 seconds. Find the power of the machine?

A: Introduction :  In this question we are provided it value of work and time . With these data we have…

Q: A force of 50N is applied to the end of a lever, which is moved a certain distance. If the other end…

A: Step 1Force that is applied to the end of a lever isTo find the force exerted when the other end of…

Q: The lever is a compound machine. True False

A: The lever consisting of a beam or rigid body pivoted at a fixed hinge. A lever is a rigid body…

Q: During a bench press, does the amount of work, or power, required depend on the rate at which the…

A: The amount of work done is the product of the force applied and the distance through which the…

Q: What is the work required to raise a 200kg barbell to a height of 1.25m? Round off to the nearet…

A: Given Mass m = 200 kg Height h = 1.25 m Force required to raise F = mg

Q: Solve for the average mechanical power that must be delivered by the muscles of a mountain climber…

A:

Q: the work done

A:

Q: How long will it take 500 watts motor to raise 1,200 N hammer of a pile driver 12 m?

A: Given in question -  Power(P) = 500 watt                                   Force (F) = 1200 N…

Q: A lever of length 100 cm has effort of 15 kgf at a distance of 40 cm from the fulcrum at one end.…

A:

Q: The total length of a first class lever is 9.0 ft. This is used to move a load of 390 lbs, as…

A: givenTotal length of first class lever=9 ftload=390 lbs

Q: A lever of length 300 cm has an effort of 15 kgf at a distance of 40 cm from the fulcrum at one end.…

A: GIVEN: length of lever l = 300cm  effort on lever = 15kgf at a distance of 40cm from the fulcrum so…

Q: The other end of the lever is pushed down 3 ft while lifting the rock. When the work done is 164.9…

A: Given data:  Displacement (d) = 3 ft Work done (W) = 164.9 ft-lb Required: Force (F)

Q: A 300-foot cable weighing 6 pounds per foot is hanging from a vwinch 300 feet above ground level.…

A:

Q: anet with a net force of 250 now all work, including the

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Q: A constant force of ( 340 N) parallel to the sloping surface of a ( 37o ) inclined plane pushes a (…

A:

Q: Assuming this maximum height was the result of one push from her parent, what was the average force…

A: Given data, distance S=152 cm

Q: What is the ideal mechanical advantage of a ramp that is 4.3 m tall and 27 m long? A 1.5 6.3 22.7…

A:

Q: A uniform cable hanging over the edge of a tall building is 80 ft long and weighs 45 lb. How much…

A: Workdone = 787.5 lb ft

Q: find the work done of the child

A:

Q: Given data: Force=12.88 N Displacement=0.08 m Find Work done

A: We have an object on which a force is applied of magnitude F=12.88 N which it makes it move with a…

Q: In a single movable pulley, if the effort moves by distance x upwards , by what height is the laod…

A: The expression for the velocity ratio,

Q: Suppose that as part of their training, the football players of Central Luzon State University went…

A:

Q: . A 3000 lb elevator is supported by a 14 ft cable that weighs 15 lbs/ft. Find the work required to…

A:

Q: A horizontal force of 11.76N is applied to 2.5kg block, which is rest on horizontal surface. If the…

A: Given Data : The mass of the block is given as m = 2.5 Kg. The force acting on the block is given as…

Q: A person opens a door by applying a force of 12 N perpendicular to the door at a distance of 0.80 m…

A: Given data The force applied by the person on the door is F = 12 N. The distance of the door from…

Q: Suppose the 480 lbs pile driver that drops 20 ft drives the pile 2.0 in. every time it strikes the…

A:

Q: If a machine multiplies force by a factor of 4, what other quantity is diminished, and by how much?

A:

Q: Given data : Displacement = 7 m Force = 0.18 N Find the work done

A: Given data :                         Force     =     F                  Displacement    =    d…

Q: A chop saw with a mass of 12.60 kg is 0.75 m from one end of a worktable that is 2.00 m long. What…

A: Given data: The mass of the chop saw, m=12.60 kg. The distance from the chop saw to one end of a…

Q: An object of mass m= 4kg placed on a frictionless, horizontal table is connected to a string that…

A: Given :- The mass m1 = 4 kg  The mass m2 = 9 kg  The mass arranges in the wavy shown in the figure.…

Q: Compute the Force Work done=0.8124 J Displacement=1.112 m

A: Given data : Work done=W Displacement=d   To find : Force

Q: work is done by the boy

A:

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.