A 75-kg person climbs some stairs at a constant rate, gaining 2.2 meters in height. Find the work done by the person, in joules, to accomplish this task.

Q: A carton is pulled along the ground for a distance of 11 m. If the average frictional force is 57 N,…

A: Work done is defined as  W=F→·S→where F is the force S is the displacement Here the Frictional force…

Q: A crane lifts a 650 kg beam vertically upward 9.6 m and then swings it westward 18 m. How much work…

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Q: If a person of mass 100.0kg climbs a 2.00m high set of stairs in 4.00s, how much work do they do?

A: Given data: The mass of person is m=100 kg. Height of stairs is h=2.00 m. Time taken is t=4.00 s.

Q: How much work did the movers do (horizontally) pushing a 160-kg crate 10.3 m across a rough floor…

A: Since the crate is moving acceleration, the pusher must do a work to overcome the frictional force.…

Q: A 25 kg sack of rice is lifted 1.25 m above the floor for 50 sec. The rate at which work is done on…

A: Given Data: mass (m) = 25 Kg Height (h) = 1.25 m Time (t) = 50 s

Q: What is the minimum work required to push a car with a mass of 1,500 kg car a distance 200 m upwards…

A: Given data: Mass of the car (m) = 1,500 kg Incline distance (d) = 200 m Incline angle θ= 20°…

Q: A crane lifts a 650 kg beam vertically upward 10.8 m and then swings it westward 18 m. How much work…

A: The formula for workdone is W=Fxcosθ

Q: A box of winter jackets of mass 76 kg is droped from a stationary helicopter at an altitude of 98 m.…

A: The work done by the air resistance is the loss in kinetic energy according to conservation of…

Q: How much work has to be done to accelerate 1320kg car from 115km/h to 130km/h ?

A: Given data:  Mass of car (m) = 1320 kg Initial velocity of car (Vi) = 115 km/h Final velocity of car…

Q: A force of 12 lb is required to hold a spring stretched 2 in. beyond its natural length. How much…

A: Scenario - Work is done to stretch a spring beyond its original length. Given, Force→F=12 lb Initial…

Q: A single force acts on a 3.0 kg particle object whose position is given by x= 3.0t-4.0t^2+.5t^3,…

A: The mass of the particle m=3.0 kg The position of the particle x=3.0t-4.0t2+.5t3 The velocity of the…

Q: A 1.5 kg object slides across a horizontal surface with an initial speed of 6.84 m/s. If the object…

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Q: An archer pulls a bowstring back 0.500 m by exerting a force that increases uniformly from zero to…

A: It is given that, x=0.500 mF=250 N

Q: A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of…

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Q: how much work did the movers do (horizontally) pushing a 46.0-kg crate 10.3 m across a rough floor…

A: The expression for the required work done is,

Q: A force F= 9xi - 2yj, where Fis in Newtons and x and y are in meters. Find the work done if the…

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Q: A mouse of mass 200 g falls 120 m down a vertical mine shaft and lands at the bottom with a speed of…

A: Mass of mouse , MA = 200 g = 0.2 kg Depth , d = 120 m  speed , v = 8.5 m/s   To find = work done on…

Q: what rate of work is developed by a 50.0 kg jogger who runs around a 1.00 km track three times in…

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Q: How much work did the movers do (horizontally) pushing a 43.0-kg crate 10.3 m across a rough floor…

A: Given data:Mass of the crate, M = 43.0 kgDistance moved, d = 10.3 mCoefficient of friction = 0.50

Q: How much work is done against the gravitational force on a 5.0-kg briefcase when it is carried from…

A: Since,breifcase is being carried to some height ,it acquires some potential energy.Hence,Work done…

Q: A boy pushes a spring with maximum force of 75 N, compressing it 2.0 cm. How much work does the boy…

A: Given data: Applied force (F) = 75 N Compression or displacement (d) = 2.0 cm…

Q: How much work must be done by frictional forces in slowing a 1555 kg car from 13.3 m/s to rest?

A: Given Data: The mass of the car is: m=1555 kg The velocity of the car is: u=13.3 m/s The final…

Q: A ball was launched upwards and vertically at a speed 3 m/s up to a height 4 m. What the work done…

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Q: A force of 12 Ib is required to hold a spring stretched 2 in. beyond its natural length. How much…

A:

Q: A 2.4 kg object slides across a horizontal surface with an initial speed of 7.6 m/s. If the object…

A: SOlution: Given that m = 2.4 kg v = 7.6 m/s

Q: If a person pushes on a lawnmower with a constant force of 90.0 N at an angle of 40° to the…

A: Given data: Constant force (F) = 90.0 N Angle (θ) = 40° to the horizontal Horizontal displacement…

Q: A worker pushes horizontally on a large crate with a force of 195 N, and the crate is moved 4.0 m.…

A: Given data: The applied force is F=195 N. The distance moved is s=4 m.

Q: A mouse of mass 176 g falls 92 m down a vertical mine shaft and lands at the bottom with a speed of…

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Q: Calculate the work you must do to accelerate 2 kg from 2 m/s to (2 + 1) m/s.

A: As per the given data,   mass(m)=2 kg;Initial velocity (u)=2 m/s;Final velocity (v)=2+1 m/s=3 m/s;

Q: A 6.0 kg box slides a 12 m distance on ice. If the coefficient of friction is 0.21, what is the work…

A: Given data: Mass (m) = 6.0 kg Distance (s) = 12 m Coefficient of friction (μ) = 0.21 Required: Work…

Q: Find the work done in joules by gravity as an object of the mass m310 kg is raised up at constant…

A: Mass = 10 kg  Displacement = h2 - h 1 = 80m - 22 m =  58 m As we know Workdone  is given by W  Which…

Q: How much work did the movers do (horizontally) pushing a 46.0-kg crate 10.3 m across a rough floor…

A:

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

A:

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: Is the work done by the applied force positive or negative when a heavy body is lowered to the…

A: Let h be the height at which the body is initially, F be the applied force, W be the work done by…

Q: A truck has a gross weight of 1.0 x 106 N. Assuming that the concrete road has a coefficient of…

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Q: How much work is it to lift a 25 kg sack of potatoes at a constant speed vertically 7.5 m?

A: Write the given values with suitable variables. m=25 kgh=7.5 m Here, m denotes the mass and h…

Q: Find the work done in joules by gravity as an object of the mass m=9 kg is raised up at constant…

A: Given data: The mass of the object, m=9 kg. The initial height of the object, h1=26 m. The final…

Q: A ball is dropped from the top of a building at 14m, and is in free fall. If the ball is 1.2kg, find…

A: Given : Height of a building (h) = 14 m Mass of a ball (m) = 1.2 kg

Q: How much work does a supermarket checkout attendant do on a can of soup he pushes 0.600 m…

A: Force, F=5 N magnitude of displacement, d=0.6 m Angle between the force and displacement, θ=0° Work…

Q: What is the power output for a 60.0-kg woman who runs up a 3.00 m high flight of stairs in 3.50 s,…

A: The mass of the woman is m=60 kg. The height is h=3 m. The time is t=3.50 s. The final speed is vf=2…

Q: A crane lifts a 650 kg beam vertically upward 10.1 m and then swings it westward 18 m. How much work…

A: Here the workdone is only in upward direction. No workdone in horizontal direction.

Q: In the absence of friction, how much work would a child do while pulling a 12kg wagon a distance of…

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Q: A bag of wheat weight 130 kg. To what height should it be raised so that potential energy is 150 J ?…

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Q: How much work does gravity do on a 0.150 kg ball falling from a height of 10 m? (Neglect air…

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Q: How much work has to be done to accelerate 1320kg car from 105km/h to 120km/h?

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