A 10 ft chain weighs 45lb and hangs from a ceiling. Find the work done (in ft-lb) in lifting the lower end of the chain to the ceiling so that it's level with the upper end.  ft-lb

Q: In the figure, the rock weighs 130 lb and is lifted 1 ft by the lever. F Fulcrum 3F 3d (a) How much…

A: Given data: a)Force F=130lb    Distance d=1 ft b) Distance d=3 ft

Q: A box is lifted vertically 13.51 m and is then held there. The box has a weight of 29.72 N. Ignoring…

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Q: If it takes 5.00 J of work to stretch a Hooke’s-law spring 10.0 cm from its unstressed length,…

A: Given that, The work done to stretch a spring 10 cm from its unstressed length is 5 J. We need to…

Q: (a) Calculate the work done by a 5.6 N force pushing a 400. g sandwich across a table 0.75 m wide.…

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Q: A force of 14 lb is required to hold a spring stretched 4 in. beyond its natural length. How much…

A: force = 14 lb stretch (d) = 4 in

Q: Ali is pushing a wooden box of weight 78N for 2m on a rough floor using a horizontal force of 120 N.…

A: weight of box = m g = 78 NDisplacement = S = 2 mhorizontal force = F = 120 Ntotal work = W = 190 J

Q: 100 feet and weighing A chain, with length h 3 pounds per foot, hangs over the side of a building.…

A: Given:  Total length of the chain = 100 ft Weight of the chain = 3 pound per feet

Q: A force of 20 Ib is required to hold a spring stretched 8 in. beyond its natural length. How much…

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Q: How much power is required to lift a heavy solid concrete beam with mass 60.21 kg upward with a…

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Q: A crane is used to hoist a steel girder up to the top of a sky-scraper under construction. The…

A: Given: Weight of the steel girder: 2,755 lb (12,260 N) Distance lifted: 175.6 m (48th floor)

Q: It takes a force of 29.79 Newtons to stretch a 46-cm spring to 127-cm and hold it there. How much…

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Q: A 10 ft chain weighs 75 lb and hangs from a ceiling. Find the work done (in ft-lb) in lifting the…

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Q: A 60 kg box is pushed 12 m across a horizontal floor by a horizontal force of 200 N. The coefficient…

A: The mass of the box, m=60 kg   The horizontal distance, d=12 m   The horizontal force, Fa=200 N

Q: Calculate the work done by an archer in pulling a bow if she pulls her bowstring back 0.455 m by…

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Q: A metal wire of length 2.5 m and area of cross-section 1.5 x 106 m² is stretched through 2 mm.…

A: We have to find work done (W) Given that, Length of wire L is 2.5 m Y is 1.25×1011 N/m2

Q: How much work is done by gravity when dead lifting a 100.0 kg barbell 81.54 cm from the floor to hip…

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Q: A 5.2kg box is raised from rest a distance 5.5m by an upward applied force of 3.4N. Find the work…

A: We will use work done formula,

Q: A cable weighing 4lb/ft is unwinding from a cylindrical tank. Find the work done by a force of…

A: Given: Mass density of the cable, 4 lb/ft Unwounded cable, 60 ft To find: Work done by the force to…

Q: A force of 17 Ib is required to hold a spring stretched 3 in. beyond its natural length. How much…

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Q: What distance can a crane lift a 55.0 N box, if it expends work of 2.00 x 104 Joules?

A: given ;    force, F = 55.0 N , work done = 2.00 x 104  Joules  formula used;     W = F x d   where,…

Q: You are loading a refrigerator weighing 2.29×103 N onto a truck, using a wheeled cart. The…

A: The component of weight is Wsinθ along the incline as shown The applied force must counter this…

Q: A 5 m rope weighing 0.50 kg per m is hanging from the ceiling. Find the work required to lift the…

A: Length of rope, L=5 m  Mass per unit length=0.50 kg  To determine the work required to lift the…

Q: A rope that weighs 0.5 lb/ft is attached to a bucket filled with cement plaster that weighs 22 lbs.…

A: Given, the weight density of the rope is ρ=0.5lb/ft And the weight of plaster is wb=22lb It lifted…

Q: A box is lifted vertically 32.63 m and is then held there. The box has a weight of 17.92 N. Ignoring…

A: Given data: Height (h) = 32.63 m Weight (W) = mg =  17.92 N Required:  Work done

Q: A 2 m rope weighing 0.75 kg per m is hanging from the ceiling. Find the work required to lift the…

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Q: es a force of 34.92 Newtons to stretch a 27-cm spring to 83-cm and hold it there. How much was the…

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Q: In the figure, the rock weighs 115 lb and is lifted 1 ft by the lever. F Fulcrum 3F 3d (a) How much…

A: The work done is calculated by using the formula W=Fd , where F is the force applied and d is the…

Q: vator having a mass of 585 kg is raised a distance of 32 m. Determine the work done, neglecting…

A: Given:-  The mass of the elevator is m = 585 kg  The distance d = 32 m.  Find:-  Determine the work…

Q: You are loading a refrigerator weighing 2.29×103 N onto a truck, using a wheeled cart. The…

A: Given: Weight of the fridge, w=mg=2.29×103N Displacement of the fridge in vertical direction,…

Q: A 3.8kg box is raised from rest a distance 8.4m by an upward applied force of 7.8N. Find the work…

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