A system having a mass of 50 kg is raised to a height of 50 m. If the system is raised to its final position in 2 minutes, Calculate the power used in lifting the system, in watts

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: Belly-flop Bernie dives from atop a tall flagpole into a swimming pool below. His potential energy…

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Q: A hunter notches a 0.05 kg arrow in a compound bow and draws the arrow back to set the bow. The…

A: Mass of the arrow , M = 0.05 kg  Work done in setting the arrow , W = 50 J  To find = Speed of the…

Q: By using a simple and practical example, explain that based on the choice of one's system of study,…

A: When a force acting on a body displaces it over a certain distance, work is said to be done. Work is…

Q: A 50ft chain with mass density 5lb/ft is initially coiled on the ground. How much work is performed…

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Q: gravitational potential energy at Point A.

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Q: A 1000 W motor powers a hoist used to lift carscat a service station. If the original motor is…

A: If a car of mass m is lifted up to h height then work done by the motor is W=mgh and if the time…

Q: The work done by a nonconservative force on an object depends on the path taken from the initial…

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Q: Truck suspensions often have "helper springs" that engage at high loads. One such arrangement is a…

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Q: 6. You pushed a box from the bottom of the inclined plane to the top. The rise height of the…

A: Work done to get the box to the top of the incline  W = mg x h vertical   W = 42*9.81*8 = 3296.16 J…

Q: The figure shows a system of point loads and from this you want to form an equilateral triangle from…

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Q: With an object moving on a track with negligible friction, the following graph was obtained. If it…

A: Given mass of an object = 845 gram = 0.845 kg intial velocity of object = 0.2 m/s  (from graph)…

Q: A fan has a power output of 100 W. How much energy does the fan consume of it is on for 45 seconds?

A: Given data: Power (P) = 100 W Time (t) = 45 seconds Required: Energy (E) consumed by fan

Q: A patient’s heart pumps 5.00 L of blood per minute into the aorta, which has a diameter of 1.80 cm.…

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Q: 38.) if you pushed the bike up a long ramp, you would be doing work as you moved the mass of the…

A: The two situations given are that a bike is pushed up a long ramp and the bike is lifted up a set of…

Q: An airplane weighing 20,567.2 lbf at ground is flying at an altitude of 31,781.33 ft at 531…

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Q: Calculate the work done in lifting a 520-NN barbell 1.8 mm above the floor. Express your answer to…

A: Work done on an object when a force F acts on it and the object gets displaced by some distance d is…

Q: Calculate the work done by a 1500 watts appliance if it runs for 300 seconds

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: rate of 85 W in a rowing machine. Calculate the force (in N) you exerted on the handle when each…

A: Power is the rate at which work is done.  Power = Work / Time But, Work = Force × Distance Hence,…

Q: Power output can be increased by __?   a. increasing the amount of time in which work is done b.…

A: The output Power is   P= Work done/Time taken From this equation, it is clear that the out put power…

Q: A 10 cm long spring, with a spring constant of 27 N/m, is used to reload the ball in a pinball…

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Q: A 25.0 kg child on a 2.00 m long swing is released from rest when the ropes of the swing make an…

A: Mass, m = 25 kg Length of the swing, L = 2 m Swing makes an angle with vertical, θ = 30°  The speed…

Q: A spring is attached to an inclined plane as shown in the figure. A block of mass m is placed on the…

A: Mass = m Distance = d Initial speed = v Incline angle = θ The surface is friction-less.  Let the…

Q: Swordfish are capable of stunning output power for short bursts. A 650 kg swordfish has a…

A: Given data The mass is, m= 650 kg The area is, A=0.92 m2 The drag coefficient is, Cd=0.0091 The…

Q: A 5.00 gram bullet moving horizontally with a speed of 400 m/s collides with a wooden block. After…

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Q: Calculate the work done when a 5.0 kg bag of apples is lifted 1.2 m off the ground.  13 c)…

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Q: A 0.19-kg apple falls from a branch 3.5 mabove the ground. (a) Does the power delivered to the apple…

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Q: No machine is 100 % efficient. What happens to the missing energy between input and output of work?…

A: According to the law of conservation of energy - Energy can't be created nor be destroyed. But in…

Q: Your job is to lift 25.0 kg packaged boxes a vertical distance of 1.0 m from the ground onto the bed…

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Q: An object is traveling at a final speed of 12 m/s. What was the initial speed of the object,…

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Q: ** 20. A string exerts an upward tension force of 45 N on a 5-kg blo ck as it slowly lowers the…

A: Given:Mass of the block = 5 kgTension in the string = 45 NDistance traveled by the block = 4 m

Q: A wooden block with mass 1.65 kg is placed against a compressed spring at the bottom of a slope…

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Q: An 82 kg person climbs a ladder, gaining 1.1 m in height. Find the work done to accomplish this…

A: Given data:  Mass (m) = 82 kg Height (h) = 1.1 m Required: Work (W)

Q: Zach pushes a 200-kg bull to the right with a force of 500 Newtons.  If Zach manages to push the…

A: Given : m = 200 kg F = 500 N d = 0.4 m

Q: A 280kg piano is being lifted at a steady speed to an apartment 10m above the ground. The crane…

A: Given Mass of Piano is m=280 kg Acceleration due to gravity is g=9.80 m/s2 Height is h=10 m Average…

Q: Calculate the work required to lift a 5-m chain over the side of a building. Assume that the chain…

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Q: Mario lifted a 40kg bag of cement from ground to put its contents to a mixer which opening is 0.95m…

A: mass of bag of cement (m) = 40 kg height (h) of the opening of the mixer = 0.95 m

Q: A 58-kg diver is standing on a platform that is 35 meters above the surface of the water. He steps…

A: given that,mass of the driverm=58 kgheight of the platformh=35 mgravitational accelerationg=9.8ms2

Q: A 1000 kg sports car is initially traveling at 15 m/s. The driver then applies the brakes for…

A: Given data The mass of the car is m=1000 kg The velocity is v=15 m/s The work done on the car by…

Q: A 30kg sloth climbs a 7M tree in 40s. Calculate, A. The sloth GPE at the top of the ladder relative…

A: Given,mass M =30 kg Height h = 7 m Time taken t = 40 s.

Q: A technician at a construction site accidentally drops a concrete block with a mass of 8kg from a…

A: Potential energy of block = mgh= 8 x 9.81 x 10 =784.8 N From conservation of energy , we have mgh =…

Q: When an object is lifted by a crane, it begins and ends its motion at rest. The same is true of an…

A: As in both the case the object is at rest when it is raised by the crane or pushed on the hard…

Q: 170 N force is applied to the handle of a lawn mower.  The handle makes an angle of 55 degrees with…

A: Work done = Force × displacement

Q: A 0.192-kg ball is thrown upward with an initial speed of 17 m/s, Calculate the gravitational…

A: mass = m = 0.192 kg initial speed = V0= 17 m/s gravitational potential energy = ?

Q: 2. A 50 kg log is floating above a waterfall at a rate of 10 ft/s. What will be the resulting…

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