A crane lifted a case with mass of 10 t (tones) to the height of 10 m, and then shifted it horizontally to a distance of 40 m. What is the work carried out by the crane? Take the terrestrial acceleration equal to 10 m/s2.

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: While rearranging a dorm room, a student does 436 j of work in moving a desk 1.6 m. What was the…

A: Amount of work done by the student, W = 436J displacement of the object, d = 1.6m Horizontal force…

Q: A 1,505 kg car starts at rest and speeds up to 4.2 m/s with a constant acceleration. If the car…

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Q: If it takes 4.00 J of work to stretch a Hooke's-law spring 5.0 cm from its unstressed length,…

A: The work done is given by  W = 12Kx2 where,  K is the spring constant and x is the stretch length.

Q: A horizontal force F is applied to move a 6kg carton across the floor. If the carton starts from…

A: Mass of carton (m) = 6 kg Applied force = F Initial speed (u) = 0 mstime (t) = 3 seconds Final speed…

Q: How much work is required to move an object from x = 0 to x = 5 (measured in meters) in the presence…

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Q: A drone of mass 1.4 kg is flying across the sky 64 m above ground at the speed of 19 m/s   I fyou…

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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: what is the total work done by the force over the distance x=0 to x=15.0m?

A: Work done is basically the area under the graph of Force vs displacement!

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 force of 77 pounds is required to hold a spring stretched 0.3 feet beyond its natural length. How…

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Q: A spring has a natural length of 15 cm. If a 22-N force is required to keep it stretched to a length…

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Q: An object of mass 3.00 kg is dropped off the top of a building which is 57.3 m high. How far is the…

A: The kinetic energy of the object at the top most point is zero. The total energy of the object at…

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 truck of mass 900 kg starts with an initial velocity of 2.00 m/s and travels in a straight line…

A: Mass of the truck,

Q: The elevator with a mass of 200 kg with an input power of 4.5 kW with a constant speed, takes 2…

A: The elevator has a mass of 200 kg. Let M=200 kg. The elevator carries 2 persons, 50 kg each, from…

Q: A 2 kg object slides across a horizontal surface with an initial speed of 6.53 m/s. If the object…

A: Given- Mass of object m= 2kg Initial velocity v=6.53 m/s

Q: Why is it tiring to push hard against a solid wall even if no work is done? A 75 kg firefighter…

A: Q 1) We get tired because we use our energy to contract the muscles. We try to push the wall using…

Q: A 5.0-kg cart is moving horizontally at 4.0 m/s. In order to change its speed to 6.0 m/s, the net…

A: Given: Mass of cart m=5.0 kg Initial speed u=4.0 m/s Final speed v=6.0 m/s To find net work done in…

Q: A horse pulls a cart with a force of 0.2 kN at an angle of 27 degrees with the horizontal and moves…

A: F = 0.2 kN = 0.2 x 103 N θ = 270 v = 10 kph = 10kmh×1000m1km×1h60min×1min60s = 2.778 m/s t = 12 min…

Q: A 3.00-kg object has velocity (6.00i− 2.00j) m/s. (*) What is its kinetic energy at this moment?…

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Q: How much work is done when a hoist lifts a 260-kg rock to a height of 7 m? (Use 9.8 m/s2 for the…

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Q: A mass of 60 kg is moved vertically upwards through a distance of 6 m. If the gravitational…

A: Mass, m = 60 kg Distance, d = 6 m

Q: You push your much-loved 3-kg physics book 0.83 m along a horizontal table top with a horizontal…

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Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=7 m/s at a starting point.…

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Q: A record was set for stair climbing when a man ran up the 2300 steps of the Empire State Building in…

A: Average power output is,

Q: Suppose that 48 J of work is needed to stretch a spring from its natural length of 9 m to a length…

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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 is your average power if you lift a 36.1 kg box at a constant speed to a height of 1.31 m in…

A: Calculate the work required for the to lift the mass. W = increase in potential energy of the mass…

Q: If it requires 9.0 J of work to stretch a particular spring by 2.0 cm from its equilibrium length,…

A: The energy required to stretch the spring is

Q: How high must a 20 kg box be lifted to give it 784J of potential energy?

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Q: A spring has a natural length of 40 cm. If a 60-N force is required to keep the spring compressed 10…

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Q: A chain 59 meters long whose mass is 23 kilograms is hanging over the edge of a tall building and…

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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: An object is moved on a horizontal surface by a force of 15 N up to a distance of 10 m. The force of…

A: Given Applied force = F = 15 N friction force = f = 7.5 N Displacement = s = 10 m We have to…

Q: as a 2kg object moves from (2i+5j)m to (6i-2j)m, the constant resultant force acting on it is equal…

A: Given that the mass of object is m=2.0kgThe object moves from S1=2i+5j to S2=6i-2jThe force on the…

Q: How high up is a 3200-kg plane if it has 960000 J of potential energy?

A: Potential energy = mgh

Q: If 12 J of work is needed to stretch a spring from 11 cm to 15 cm and another 20 J is needed to…

A: Given data: The work done for the first case is, W1= 12 J The spring stretched from an initial…

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: How much work is done when a hoist lifts a 290-kg rock to a height of 5 m? (Use 9.8 m/s2 for the…

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Q: If 54 J of work are needed to stretch a spring from 10 cm to 16 cm and 90 J are needed to stretch it…

A: Given Work needed to stretch a spring from 10 cm to 16 cm- 54[J] Work needed to stretch it from 16…

Q: How much work (in J) is required to move a box that weighs 18 kg upward by 35 cm? Use the fact that…

A: Given, Mass  of the box m = 18 Kg Upward distance h = 35 cm = 0.35 m Acceleration due to gravity g =…