How much work is done lifting a 20 pound object from the ground to the top of a 30 foot building if the cable used weighs 1.5 pounds per foot?

Q: An object initially moving north has a constant net force directed to the east. Which of the…

A: we know the formula for work done is w = FS cos ( theta )  where s is the displacement  and F is the…

Q: We hang a 1.0 kg weight on a vertically suspended coil spring. The spring gets extended by 3.0 cm.…

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Q: A horizontal rope with 15 N tension drags a 25 kg box 2.0 m to the left across a horizontal surface.…

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Q: A twelve-wheeler pulls a four-wheeler car on a distance of 5,000 meters using a rope having an…

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Q: 11. A 2.0-kg piece of gelatin is made to slide down a ramp from point a to point b, as shown. The…

A: Given,     11     Mass m =2 kg                The total distance a to b =2m.…

Q: Two cyclists who weigh the same and have identical bicycles ride up the same mountain, both starting…

A: time taken by joe is lesser than bob.distance covered by bob is longer than the distance covered by…

Q: s of 4.15kg. Its initial velocity is 14.3m/s and its final is 7.43m/s. Force A has a work of +747J,…

A: Given:-  A ball has a mass of m = 4.15kg.   Its initial velocity is 14.3m/s and its final is…

Q: A man pushes a lawnmower on a level lawn with a force of 193 N. If 40% of the force is directed…

A: Given: The force is F=193 N The horizontal force is FH=40100F=0.4×193 N=77.2 N The displacement is…

Q: A force of F(x) = x2 - cos(3x) + 4 measured in Newtons and where x is in meters, acts on an object.…

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Q: force of 5 pounds is required to hold a spring stretched 0.6 feet beyond its natural length. How…

A: Given  Force F =5 pound  X =spring stretch =0.6

Q: person pulls a luggage along a level road for 5 m by exerting a force of 20N at an angle of 30° with…

A: Given: The displacement of the object is 5 m. The applied force is 20 N. The angle between applied…

Q: You lift a 3kg pumpkin to a height of 0.80 m to check it out. How much work do you do on the pumpkin…

A: Consider the formula to obtain the value of work done is, W=mgh Here, m is the mass of the object, g…

Q: The human heart is a powerful and extremely reliable pump. Each day it takes in and discharges about…

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Q: QUESTION 10 10. The force required to hold a spring 0.5 m past its natural length is 8 N. Find the…

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Q: On a table rest 6 books of mass 0.27 kg and thickness 3.8 cm. How much work does it take to stack…

A: Number of books = 6Mass of each book = 0.27 kg Thickness of each book = 3.8 cm = 0.038 m

Q: What is the minimum amount of work (in Joules) required to raise a 32.44 kg mass 31.22 meters…

A: The force required to do work is, F=mg=32.44 kg9.8 m/s2=317.912 N

Q: A box is being pulled to the right by a force P on a rough surface ( with friction). Which of the…

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Q: The figure above shows a 2.0 kg block of slippery cheese that slides along a frictionless track from…

A: Write a given values of this question. m=2.0kgha=2.0mhb=0.80m

Q: 102 kg man climbs a 3.2 meter high staircase at constant speed. How much work has he done? (=9.8 m/s…

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Q: Your brand new 75.0-kg refrigerator falls out of the back of your truck while you are traveling up a…

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Q: A 5.0-kg cat was travelling at a constant speed of 8.0m/s. It then encounters a 6.0-m long rough…

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Q: A 20 N block initially at rest, slides down a 150 m long inclined plane. The plane makes an angle of…

A: Weight of block = mg   = 20 N  Length = 150 m  Angle = 30°  Speed at bottom = 15 m/s  Net work done…

Q: Suppose you need to lift a 20 kg box by a height of 1.0 m. (i) You hold the box and lift it…

A: Given data: The mass of the box is m=20 kg. The height of the box lift is h=1.0 m. The inclination…

Q: A 2.5 kg rock is released from rest at the surface of a pond 1.8m deep. As the rock falls, a…

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Q: You lift a heavy fruit basket from the ground and carry it 500m along the street and then up a…

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Q: 15. Refer to the graph below. Calculate the total work done from t = 0.00m to t 8.00 m F (N) 12 10 8…

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Q: How much work in J must be done by frictional forces in slowing a 4.82 kg car from 10.28 m/s to rest

A: According to the work energy theorem,  Work done = change in kinetic energy

Q: Early one October, you go to a pumpkin patch to select your Halloween pumpkin. You lift the 3.0 kg…

A: Assuming pumpkin is lifted and moved on level ground such that its kinetic energy does not change,…

Q: A force of 5 pounds is required to hold a spring that is stretched 0.3 feet beyond it's natural…

A: Given:- F = 5 pounds x = 0.3 ft To find:- Work done in order to stretch the spring 1.1 feet beyond…

Q: Find the work (in ft-lb) done by winding up a hanging cable of length 100 ft and weight-density 3…

A: a) Let the length of the hanging cable be L and the weight density be w. The force due to hanging…

Q: QUESTION 1 A rough surface is inclined at 40° to the horizontal. A box of mass 1.5 kg is pulled at…

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Q: Find the work done in joules by gravity as an object of the mass m-8 kg is raised up at constant…

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Q: A 24 kg child starts from rest and slides down a slide 4.3 m high. At the bottom of the slide is…

A: Given: The mass of the object is 24 kg. The initial speed of the object is 0 m/s. The final speed of…

Q: Is it possible that the work done by a force is negative? Give an example.

A: Yes it is possible for work done by a force to be negative.If the displacement happened in the…

Q: A force of 1300 lb compresses a spring from its natural length of 18 in. to a length of 10 in. How…

A: Given Applied force is F=1300 lb Compression of the spring in the first case is ∆x1=18-10 in=8 in…

Q: A weight lifter lifts a 320-N set of weights from ground level to a position over his head, a…

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Q: 4 m 3 m Your mass is 50 kilograms, and you take a ride down the slide shown in the picture (with a…

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Q: A man starts at ground level and carries a 20 kg box up a flight of stairs to a height of 3.6 m. He…

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Q: A rope is tied to a box and used to pull the box 1.5 m along a horizontal floor. The rope makes an…

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Q: On a horizontal surface, an object slides from point P to point Q along a straight line, then slides…

A: here, diameter of semicircle= PQ= L firction force =fk

Q: Achok lifts a 12.5 kg rock and places it above a 2.40 m shelf. How much work does Achok do? O 294.3…

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Q: You stand at the top of a cliff and lower a first aid kit (attached to a rope) down the cliff to an…

A: Required : Sign of work done by the rope and gravity.

Q: Hiller pulls the parachute/alien with a constant force of 259. N for a distance of 2.8 x 105 m.  How…

A: Given  Force = F = 259 N  Distance = d = 2.8*105 m  W = ??

Q: You pick up a barbell with weights (total mass: 100.0 kg) from the ground to approximately 0.800 m…

A: Mass of the barbell is m = 100 kg Height of the barbell after lifting it is H = 0.800 m

Q: 1. In a training, you are doing a vertical climb using a rope to lift yourself by 5.0 m in 2 s. If…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A spring whose natural length is 14cm exerts a force of 29N when stretched to a length of 19cm. (a)…

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Q: If it takes an amount of work W to move two +q pointcharges from infinity to a distance d apart from…

A: The expression for work done (W1) in case of two +q charges from infinity to a distance d apart from…

Q: A spring whose natural length is 10cm exerts a force of 27N when stretched to a length of 16cm. (a)…

A: Given: The applied force is 27 N. The natural length of the spring is 10 cm. The stretching in…

Q: porter pulls a 10 kg luggage along a level road for 5 m by exerting a force of 20 N at an angle of…

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