A uniform cable hanging over the edge of a tall building is 40 feet long and weighs 60 pounds. How much work is required to pull 10 feet of the cable to the top?

Q: A force of 7 pounds is required to hold a spring stretched 0.4 feet beyond its natural length. How…

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Q: The figure shows a ball with mass m = 0.471 kg attached to the end of a thin rod with length L =…

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Q: The 77.0 kg painter in the figure below is using a large stepladder. The base of the ladder is 3.0 m…

A: In this question we are given that the 77.0 kg painter in the figure below is using a large…

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: A pile driver lifts a 400 kg weight and then lets it fall onto the end of a steel pipe that needs to…

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Q: A 60lb child and a 150lb adult are each holding 30lb weights and balancing on a seesaw. (a) If the…

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Q: Corda Peso

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Q: An athlete strengthens her leg and knee by doing "leg curls." While sitting on a bench with the leg…

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Q: A 40-kg door with a height of 2.0 m and a width of 0.80 m is hinged at the end of the door along its…

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Q: A pendulum consists of a 2.5 kg stone swinging on a 4.0 m string of negligible mass. The stone has a…

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Q: The figure shows a ball with mass m = 0.471 kg attached to the end of a thin rod with length L =…

A: a)The work done on the ball by the gravitational force at the lowest point is 2.68Jb)The work done…

Q: A 50ft chain with mass density 5lb/ft is initially coiled on the ground. How much work is performed…

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Q: When using a ladder, it is important to place it against a wall at a safe angle. A ladder could tip…

A: For safe angle, the ratio of working length to distance away from wall = 4:1 To find; Value of safe…

Q: Suppose you use an ideal pulley of the type shown in the figure below and find it necessary to exert…

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Q: A farmer is trying to bring down a couple of bags of cattle feed (mass 70kg) from the 2nd floor…

A: According to the law of conservation of energy, the expression can be written as…

Q: A 2,400-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.80 m…

A: GIVEN:- Mass of pile driver = 2400 kg Hight by which pile driver falls before coming into contact…

Q: The figure shows a ball with mass m = 0.348 kg attached to the end of a thin rod with length L =…

A: given -   mass of ball (m) = 0.348 kg  and Length of rod  =0.453 m mass of rod = 0 kg

Q: What is the force that the cable exerts on the beam?

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Q: A pile driver lifts a 350 kg weight and then lets it fall onto the end of a steel pipe that needs to…

A: Given data: The mass, m=350 kg The height, h=1.5 m The distance, s=45 cm=0.45 m

Q: A 80.09 kg man walks up 12 stairs, each of which is 12.67 cm high, in 2.083 s.  Assuming he can…

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Q: A force of 3N is applied to an object at an angle of -1 radians to the x-axis. The object slides in…

A: The work done by a force on moving a body by a distance is given by W = F.s = F×s×cosθ, where F =…

Q: A device used for mixing consists of three identical thin rods extending from a central axle, all in…

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Q: , how much work is done by the man against gravity in climbing to the top?

A: If the acted force is F and for the force displacement is dr then We know work ,…

Q: A wooden plank (3 m long) is supported at each end by two support beams. The plank has a mass of 55…

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Q: The figure below shows a ball with mass m = 0.330 kg attached to the end of a thin rod with length L…

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Q: Sergei uses a lever to lift a heavy rock. He obtains a 2.5 m lever and places the fulcrum 0.7 m from…

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Q: A force of 7 pounds is required to hold a spring stretched 10 in. beyond its natural length. How…

A: Given: The force required to hold the spring stretched 10 in. beyond its natural length is…

Q: DATA: Nut (in N*m) Force F 37° Calculate the torque that is applied to the nut. -25.0 cm- Force F =…

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Q: A farmer is trying to bring down a couple of bags of cattle feed (mass 70kg) from the 2nd floor…

A: Given that,Radius of the disc pulley : (r) = 0.75 (m)Mass of the disc pulley : (m) = 4…

Q: A uniform 10.0 m beam of mass 300 kg extends over a ledge, as in Figure. The beam is not attached…

A: A uniform beam of length and massextends over the ledge. The beam is not attached but rests over the…

Q: A 4m woooden beam of mass 20kg rests on two scales. A bird is setting on the wooden beam. The scale…

A: Given: Length of wooden beam is 4m. Mass of wooden beam is 20 kg. Reading on the left scale is 100…

Q: The units of the slope should be J/m. A joule is the same as a N·m. What are the units of the slope…

A: We have a curve whose slope has the units of J/m. We know that 1 Joule=1 N.m and also Newton can be…

Q: A truck used to demolish a building obstructing the construction of a bridge. This truck contains a…

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Q: 4. A 20 m long uniform bridE ends. An 800kg block is locat apply to the bridge. (F1 and F

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Q: A 10 m long and 20 kg ladder leaned against a vertical wall at an angle of 53o to the horizontal.…

A: Consider the following figure which represents the direction of all the forces acting on the ladder.…

Q: he arm of a crane has a mass of 500 kg and a length of 12 m. It is inclined at an angle of 50…

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Q: A 30-m cable of density 3 kg/m hangs vertically from a crane. Answer the questions below using that…

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Q: Proof that the energy stored in the compact bone is given by E = AL0 (Sb) ^ 2 / 2γ. When Sb is bone…

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Q: A walkway suspended across a hotel lobby is supported at numerous points along its edges by a…

A: Given info: Before loading, the diameter of the steel cable is 1.27 cm and the length of the steel…

Q: A 96.76 kg man walks up 12 stairs, each of which is 18.77 cm high, in 2.62 s.  Assuming he can…

A: Given that:- Mass of man=96.76kg

Q: A worker is using a 4.0 m long steel bar as a lever to raise one side of a car off the road. The…

A: Solution: Given: L = length of lever = 4.0 m r1 = length of load arm = 0.40 m r2 = length of effort…

Q: A truck used to demolish a building obstructing the construction of a bridge. This truck contains a…

A: