How much work is required to lift a 2.6-kg concrete block to a height of 1.3 m?
Q: A father is pulling his son on a sledge with a 120 N force at an angle of 45 degrees with the…
A: Given Amount of force is F=120 N Angle is θ=45 degrees with the horizontal Work done is W=400 J
Q: A horizontal force of 310 N is applied to move a 46 kg television set across a 20 m level…
A: Given:Applied force, F = 310 Ndistance travelled by television, d = 20 m
Q: A toy rocket weighing 3 kg holds 4 kg of compressed water as fuel. As the rocket rises it loses…
A: The mass of toy rocket is M=3 kg. The mass of water fuel is m=4 kg. The height at which rocket runs…
Q: Suppose you are employed part time in the stock warehouse at a local Canadian Tire store. You work 5…
A: Work done = Force • displacement
Q: 5-kg box is being pushed on a horizontal floor with a force of 30 N at a constant speed of 14 m/s.…
A: Work done = Force × displacement
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Q: An elevator has a mass of 3,000 kg and moves 210 m up in 27 s at constant speed. At what average…
A: Given m=3000kg x=210m t=27s
Q: How much potential energy due to gravity would a person have if they were standing on top of a…
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Q: A 2kg crate sitting on a horizontal surface is pushed by a horizontally applied force of 8N. If it…
A: Given- Mass of crate m=2 kg Applied force on the crate F= 8N To find the work done in the first 6…
Q: A student who weighs 546 N climbs a stairway (vertical height of 3.2 m) in 27 s. (a) how much work…
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Q: What is the work done on a 3 kg cart that accelerates from 5 m/s to 20 m/s. (A 22.5J (B 45J c)…
A: Given data: Mass (m) = 3 kg Initial velocity (Vi) = 5 m/s Final velocity (Vf) = 20 m/s Required:…
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 conveyor belt uses 5 newtons [N] of force to move a 34 kilogram [kg] box to a velocity of 2.05…
A: We know As force is constant, Work done would be : W=Force.displacement=F.d=5dAnd as box reaches a…
Q: A heavy rope, 50 ft long, weighs 0.5 lb/ft and hangs over a building 120 ft high. How much work is…
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Q: h potential energy due to gravity would a person have if they were standing on top of a building…
A: Given:- The mass of the person is m = 76.1 kg The height of the building h = 51.7 m Find:- How…
Q: A toy rocket weighing 3 lbs holds 1 lb of compressed water as fuel. As the rocket rises it loses…
A: The mass of toy rocket is M=3 lbs. The mass of water fuel is m=1 lbs. The height at which rocket…
Q: How much work is done lifting a 100 N barbell vertically 0.5 m?
A: The workdone in lifting a 100 N barbell vertically 0.5 m. given,Force(F)=100 Nheight(h) moved=0.5 m
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 bodybuilder lifts a 150 kg barbell to a height of 3.0 m. What is the work done by the bodybuilder…
A: The potential energy is given by U = m g h where, m is the mass, g is the gravity and h is the…
Q: The potential energy of a girder, after being lifted to the top of a building, is 5.17 × 10⁵ ft lb.…
A:
Q: Catching a wave, a 74.6-kg surfer starts with a speed of 1.18 m/s, drops through a height of 1.80 m,…
A: The initial energy of the surfer is
Q: A man pushes a lawn mower on a level lawn with a force of 215 N. If 37% of this force is directed…
A: We are given a man pushing lawn mover. We are given the amount of force with which it is pushing. We…
Q: Bob lifts three 1x102kg books 2m above the ground. How much work must Bob do to lift one book
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Q: How much potential energy does a person of mass 57 kg have if they are standing at the top of a…
A: Potential energy is given by U = mgh m = 57kg, h =62.4 m , g = 9.81 m/s2 U = 57*9.81*62.4 =…
Q: f 27 J of work is needed to stretch a spring from 18 cm to 24 cm and another 45 J is needed to…
A: Given data as per question energy used is 27J
Q: A solid 25-kg wood block is lifted a vertical distance of 3 meters. Its potential energy increases…
A: Given data: Mass (m) = 25 kg Height (h) = 3 m Acceleration due to gravity (g) = 10 m/s2 Required:…
Q: A man pushes a lawn mower on a level lawn with a force of 191 N. If 25% of this force is directed…
A:
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- A man pushes a lawn mower on a level lawn with a force of 192 N. If 45% of this force is directed forward, how much work is done by the man in pushing the mower 6.5 m?If 6 J of work are needed to stretch a spring from 6 cm to 8 cm and 10 J are needed to stretch it from 8 cm to 10 cm, what is the natural length of the spring? cmA man can manage a power output of 180. How long will it take him to lift the a 40 kg box to a height of 2 m?
- A 77-kg object starts with a speed of 1.3 m/s, drops through a height of 1.65 m, and ends with a speed of 8.2 m/s. How much non-conservative work was done on the object?A 2.2 kg object is initially moving at 5.78 m/s. After a time of 4.9 s, the object is moving at a rate of 8.72 m/s. What net work was done on the object during that time?A force of 45.6 lb is used to push a box 10.3 ft across a level floor. (a) How much work was done on the box? (b) What is the change of potential energy as a result of this move? (a) W = x 102 ft·lb %3D (b) PE = ft lb %3D
- How much potential energy due to gravity would a person have if he is standing on top of the building that is 1000 cm high? Assume that he has a mass of 50 kg.How much potential energy does a person of mass 82kg have if they are standing at the top of a building that is 59.6 m high? sumbit your answer is exponential form.A four-meter chain hangs from a ceiling. The chain has a density of 1.5 kilograms per meter. Find the work done if the lower end of the chain is lifted to the ceiling so that it is level with the upper end.
- a rope applies a hortizontal force of 180 N to pull a crate a distance of 2 m across a floor. A frictional force of 120 N opposes this motion. What is the total work done on the crate?How much potential energy does a person of mass 92 kg have if they are standing at the top of a building that is 56.2 m high? Submit your answer in exponential form.You and your friend Gandalf are mowing lawns for extra spending money. Gandalf pushes his mower 25 m and applies a force of 150 N. If you apply a force of 60 N, how far must you push your mower so that the work you do equal Gandalf’s?