A 26 meter chain is hanging from a winch located 26 meters above the ground. If the chain weighs 4 kilograms per meter, find the work required to wind up the entire chain.

Q: A force of 6 pounds is required to hold a spring stretched 0.3 feet beyond its natural length. How…

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Q: When you lift a box with a mass of 350 kg to a height of 2.5 meters, how much work have you done?

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Q: How much work is required to lift a 9.5-kg backpack 1.4 m to put it on?

A: Dear student The work is defined as : W = Force × Displacement in the direction of force

Q: A worker on a scaffolding 75 ft above the ground needs to lift a 500 lb bucket of cement from the…

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Q: A force of 2 pounds is required to hold a spring stretched 0.3 feet beyond its natural length. How…

A: calculation

Q: It takes a force of 35 N to stretch a 45-cm spring to 90 cm and hold it there. How much work was…

A: Given The force to stretch the spring is F=35 N. The initial length of spring is xi=45 cm. The…

Q: An elevator weighs 3600 N and must be lifted at a constant speed a vertical distance of 2.5 m in…

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Q: How much potential energy does a person of mass 75 kg have if they are standing at the top of a…

A: The mass of a person is, m=75 kg The height of a building is, h=74.1 m

Q: How much potential energy does a car gain if a crane lift the car with a mass of 1500 and 20 m…

A: Mass of the car is (m)=1500kg  Height (h) = 20m Acceleration due to gravity (g) = 9.8 m/s2

Q: A force of 30N is required to maintain a spring stretched from its natural length of 12cm to a…

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Q: How much work does a 69 kg person do against gravity in walking up a trail that gains 760 m in…

A: Work is a physical amount due to an outside force acting on a body to change position from a initial…

Q: A cable with mass ½ kg/meter is lifting a load of 150 kg that is initially at the bottom of a…

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Q: What is the work done lifting a 20kg child from the floor to a height of 2m? (Note that a mass of…

A: Given  Mass(m) = 20 kg  Height (h) = 2 m  Acceleration due to gravity near earth surface (g) = 9.8…

Q: How much work is done against gravity in lifting a 9 kg object through a vertical distance of 55 cm?…

A: Expression for force applied to lift the object -  F=mg Where m=Mass=9 kg  g=Acceleration due to…

Q: The mass of 1 m 3 of fresh water is 1,000 kg.  At the top of a hydroelectric dam the potential…

A: According to hydrostatic law, Hydrostatic potential energy = mgh

Q: A force of 77 pounds is required to hold a spring stretched 0.3 feet beyond its natural length. How…

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Q: A toy elevator is raised from the ground floor to the second floor in 20 seconds. The power needed…

A: Given Data: The time taken is, t = 20 s. The work done is, W = 1000 J. The power gives the value…

Q: How much work does Khalil perform in pushing a 35 Newtons crate a distance of 4 meters?

A: Given ,            force needed to push  crate (F) = 35 N            displacement in the direction…

Q: A force of 1 pounds is required to hold a spring stretched 0.5 feet beyond its natural length. How…

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Q: If a crane does 350J of work on a beam in 6 seconds, what is the crane's power?

A: Given The Work done by the crane is W = 350 J. The time up to which work is done is t = 6 s. The…

Q: A barrel weighing 250 lbs is suspended by a rope 30 ft long. How much work is necessary to hold the…

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Q: A piano with a mass of 137 kg is lifted 10 m above the ground in 5 s by a crane. What is the power…

A: mass of piano m = 137 kg height lifted h =10 m time t=5s

Q: how much potential energy does a person of mass 52kg have if they are standing at the top of a…

A: Given Data: The mass of a person is, m=52 kg The height of a building is, h=58 m   The expression…

Q: A student weighing 311 N climbs a flight of stairs 3 m high in 6 s. What power in watts is required…

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Q: What is the work done by a man pushing a box with a 20 N force on a 3 m inclined plane 45° from the…

A: Given force of the box W = 20 N so the force applied P for moving 3 meter inclined plane…

Q: A weightlifter lifts a 240 kg weight a vertical distance of 0.3 m in 0.9 s. What is the power…

A: Given,        mass of the object (m)= 240 kg        vertical distance (h)= 0.3 m        time (t) =…

Q: How much work is done lifting a 120-pound chair from the ground to the top of a 40-foot building…

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Q: A person weighing 233 N climbs a flight of stairs 6.0 m high in 6.0 s. What power is required to…

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Q: A compact car can climb a hill in 13 s. The top of the hill is 38 m higher than the bottom, and the…

A: Given information: The mass of the car (m) = 1400 kg The height of the mountain (h) = 38 m The time…

Q: A man pushes a lawn mower on a level lawn with a force of 191 N. If 25% of this force is directed…

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Q: How much work is done in lifting your classmate with a mass of 72kg 1.3m off the floor?

A: Given: The mass of the classmate is 72 kg.            The distance is 1.3 m.  To determine: The work…

Q: A force of 1 pounds is required to hold a spring stretched 0.4 feet beyond its natural length. How…

A: Given : F1=1 pounds x1=0.4 feet x2=07 feet In this question we have to find the work done in…

Q: How much work is required to throw a ball with a mass of 0.44 Kg 23.4 m/s?

A: Here in this question we consider the ball initially is in rest.                 i.e. vi = 0 m/s.…

Q: A student of 50 kg climbs a flight of stairs 9.0 m high in 7 s. What power is required to perform…

A: The given values are, m=50 kgh=9.0 mt=7 s

Q: What is the average power supplied by a 60 kg person running up a flight of stairs a vertical…

A: The person’s average power can be determined as, Here, W and t represent the work done and the…

Q: What is the potential energy of a 5kg box positioned 9.6m above the floor?

A: The expression for the potential energy is,

Q: A force of 4 pounds is required to hold a spring stretched 0.2 feet beyond its natural length. How…

A:

Q: Calculate the work done by a student in lifting a 0.5 kg book from the ground and keeping it on a…

A: Given: The mass of the object is 0.5 kg. The height of the object from the ground is 1.5 m.

Q: A force of 1 pounds is required to hold a spring stretched 0.2 feet beyond its natural length. How…

A: Given  Force, F = 1 lb  Stretching distance from its natural length , x = 0.2 ft  From Hooke's law-…

Q: A force of 30 N is required to maintain a spring stretched from its natural length of 12 cm to a…

A:

Q: What average power is required for a runner with a mass of 80 kg to reach a speed of 9 m/s during a…

A: Solution: Given that m = 80 kg v = 9 m/s t = 2 s

Q: a person pushes a box 10 meters along the ground using a force of 100 Newton. How much work had been…

A: Given : d = 10 m F = 100 N

Q: Find the mass of an object if it requires 700 W of power to raise it to the height of 70 m in 1.1…

A: Power = 700 W  Mass = M Height = 70 m  Time = 1.1 minutes

Q: A loaded grocery cart of mass 24.5 kg is pushed along an aisle by an applied force of 14.2 N [22.5o…

A: Given: The applied force is 14.2 N. The mass of the object is 24.5 kg. The angle between applied…

Q: A force of 7 pounds is required to hold a spring stretched 0.6 feet beyond its natural length. How…

A: The required force to stretch the spring by ∆x = 0.6 ft is F1 = 7lb so by the spring force law i.e.…

Q: A student who weighs 559 N climbs a stairway vertical height of 3.0 m in 28 s how much work is done?…

A: Weight of a student (w) = 559 N Height of stairway (h) = 3 m Time taken (t) = 28 s

Q: Consider a 30-foot chain that weighs 2 pounds per foot hanging from a winch 30 feet above ground…

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