A skier of mass 71 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 40 m up a 30° slope (assumed frictionless) at a constant speed of 1.8 m/s?  kJ (b) What power (expressed in hp) must a motor have to perform this task?  hp

Q: A 200 N box is pushed at a constant velocity up an incline that is 5.00 m long and rises 1 m. If the…

A: The Free Body Diagram of the 200 N box is shown below,   The Bos is being pushed at a constant…

Q: ohn, of mass 82.4 kg can do work for about 2.0 minutes at the rate of 1.0 hp. How long will it take…

A: Given data: Mass (m) = 82.4 kg Power (P) = 1.0 hp Height (h) = 12.0 m 1 hp = 746 watts Required:…

Q: A helicopter lifts a 100kg crate straight up via cable, with an acceleration of 0.8m/s?. If the…

A: mass of crate = 100 kg acceleration = 0.8 m/s2distance = 5 m

Q: A child pulls on a wagon with a horizontal force of 75N. If the wagon moves horizontally a total of…

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Q: A particle was subjected to a force Fx that varies with position as described by F =…

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Q: .An advertisement claims that a certain 1300 kg car can accelerate from rest to a speed of 25 m/s in…

A: Please see the answer below

Q: A single force acts on a 3.2 kg particle-like object in such a way that the position of the object…

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Q: A single force acts on a 4.0 kg particle-like object in such a way that the position of the object…

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Q: While rearranging a dorm room, a student does 323 J of work in moving a desk 2.6 m. What was the…

A: Ans:-  Work:- The work done by a constant force acting on an object is equal to the displacement…

Q: A car with a mass of 900.0 kg climbs a 20.00° incline at a steady speed of 60.00 km/hr. If the total…

A: The steady speed of a car is, v=60 km/hr=16.67 m/s The total resistive or dissipative force acting…

Q: If A 29-kg child starts from rest and slides down a slide that is 2.6 m high. At the bottom of the…

A: Given parameters :  Mass "m"= 29kg  Height "h"= 2.6m  Final Velocity "v"= 2.5m/s .   Concept :…

Q: A single force acts on a 2.0 kg particle-like object in such a way that the position of the object…

A: it is given that the mass of the object is m=2kg we have to calculate the work done on the particle…

Q: When the velocity of an object with mass 0.57 kg changes from 1.16 m/s to 0.32 m/s by the force F,…

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Q: A block of mass 0.31 kg is released from rest at point A and slides down a curved slope to point B.…

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Q: A child pulls on a wagon with a force of 75 N. If the wagon moves a total of 30 m in 2.0 min, what…

A: Given , Force = 75 N Displacement s = 30 m Time = 2 minutes

Q: A 29-kg child starts from rest and slides down a slide that is 3.6 m high. At the bottom of the…

A: Given data- mass m=29 kg, h=3.6 m, initial velocity vi=0 m/s rest, final velocity vf=1.35 m/s

Q: A 4.20-kg box has an acceleration of 2.10 m/s² when it is pulled by a horizontal force across a…

A: " As per our company policy we can answer only 3 subparts. To get the solution of remaining part…

Q: I need help with this homework problem.

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Q: What would be the power output in hp of a 1750 kg car if it can ascend to the top of a 285 m high…

A: Take the bottom of the hill to be at height zero. The potential energy of the car at the bottom of…

Q: Without pedaling, the rider rides down a 3.0% slope with constant speed of 7.0 m/s. With how much…

A: Slope = 3% therefore, θ = Tan-1(0.03) = 1.718oV = 7 msmass (m) = 80 kg

Q: A can of sardines is made to move along an x axis from x = 0.26 m to x = 1.11 m by a force with a…

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Q: A box of mass m = 1.55 kg is pushed a distance d = 1.75 m along a frictionless horizontal table by a…

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Q: A particle was subjected to a force F, that varies with position as described by 375 F where F is in…

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Q: An advertisement claims that a 1000 kg car can accelerate from rest to a speed of 20 m/s in a time…

A: mass = 1000kg v1= 0m/s;    v2=20m/s t= 5sec. K.E1= 0  (car starts from rest) K.E2= (1/2)* 1000*…

Q: How much work must you do to push a 13 kgkg block of steel across a steel table at a steady speed of…

A: Given: The mass of the block is 13 kg. The constant speed of the object is 1.3 m/s. The coefficient…

Q: A 1.00 x 10*3 kg elevator car carries a maximum load of 8.00 x 10*2 kg. A constant frictional force…

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Q: A horizontal, frictionless spring has a spring constant k = 440 N/m. How much work does it take to…

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Q: How much work does the force F(x) = (−2.0/x) N do on a particle as it moves from x = 2.0 m to x =…

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Q: A skier of mass 70.0 kg is pulled up a slope by a motor drivencable. (a) How much work is required…

A: (a) The vertical distance travelled by the skier is

Q: f the hand does 40 J of work on the 2.5 kg cart, how fast will it travel? If the person does 480…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: Given a force-displacement graph, calculate the total work. 8.00 6.00- re e 4.00- 2.00- 0.00+ 0.00…

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Q: A 28 kg air compressor is dragged up a rough incline from r1=1.9i+2.2j m to r2=9i+1.4j m, where the…

A: The expression for the work done by the gravity is W=mgh       h-displacement along y axis=28 kg-9.8…

Q: In the figure, a constant force F of magnitude 84.0 N is applied to a 3.0 kg shoe box at angle p =…

A: this problem can be solved by work energy theorem  which states that work done is equals the change…

Q: Pushing a heavy box of 100 N up along a frictionless slope, the speed decreases at a rate of 1 m/s?.…

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Q: A horse pulls a 300 kg sled for 50 m over level ground at constant speed, exerting a force of 3000 N…

A: The mass of the sled, m=300 kg The displacement of the sled, d=50 m The force exerted by the horse…

Q: Suppose the ski patrol lowers a rescue sled carrying an injured skiier, with a combined mass of 92.5…

A: Work done on an object by a force F is given as- W=F.d=Fd cosθ where,d is the displacemnt of objectθ…

Q: A worker pushes a wheelbarrow 5.0 m along a level surface, exerting a constant horizontal force of…

A: Given that Distance moved by the wheelbarrow d = 5.0 m ( let it is moved along right direction)…

Q: What power is needed to move a 13.4 kN car up an 8 degree incline with a constant speed of 80 kph…

A: Given: Mass of car, m = 13.4 kN = 1366.42 kg Angle = 8 degree Speed, v = 80 kph = 80 X 5/18 = 22.22…

Q: A person holds a bundle of hay over his head for 30 minutes and gets tired. Has he done some work or…

A: Work is done whenever the given two conditions are satisfied: a force acts on the body. there is a…

Q: The force an ideal spring exerts on an object is given by Fx = -kx, where x measures the…

A: Given, spring constant k= 60 N/m initial position xi=-0.20 m final position xf=0 m

Q: Consider again pulling a 60 m rope up a cliff face, where the rope has a mass of 66 g/m. At what…

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

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Q: how much work is done on a cart by a force F=(10i+5j)kN that causes a displacement of d=(2i+0j)m?

A: The work done is given by  W =  F→ . d→ where, F is the force vector and d is the displacement…