1. A 10 meter rope of uniform density is lying on the ground. The rope has a mass of 60 kilograms. Find the work required to lift one end of the rope to 5 meters off of the ground. (g = 9.8 m/s²)
Q: 1. If the force has a magnitude Fp = 20 N and makes an angle of 30° to the ground. Calculate the…
A: The work done by a force is given by: WD = force×displacementW =F→.s→ = Fscos(θ)Given:F =20 Ns =…
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A: According to Hooke's Law, The pull of an ideal spring is directly proportional to how far you pull…
Q: A force F of strength 20 N acts on an object of mass 3 kg as it moves a distance of 4 m. If F is…
A: Given value--- force = 20 N. mass = 3 kg. displacement = 4 m. We have to find--- work it does is…
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A: The answer is below
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Q: A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting…
A: Given that: The mass of the helicopter is m=710 kg The initial velocity is u=0 m/s The final…
Q: 10. A system of 2 paint buckets, connected by a rope of negligible mass, is released from rest with…
A: Given Masses of two paint buckets are m=8.0 kg M=5.0 kg Acceleration due to gravity is g=9.80…
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Q: 5. A 40.0-kg object is resting at the top of a table 0.60 m above ground level. The object is then…
A: Given data : Mass of object m = 40 kg Height of object when it resting on table h1 = 0.60 m above…
Q: A box that is initially in motion and of mass m = 10.0 kg is pushed across the fl distance d = 7.00…
A: Given:- The mass of the block m = 10 kg The distance d = 7.0 m The applied force F = 40 N at the…
Q: Power of the Human Heart. The human heart is a powerful and extremely reliable pump. Each day it…
A: Given data: Volume (V) = 7500 L = 7.5 m3 Time taken (t) = 1 day Height (h) = 1.6 m Density of…
Q: 1. A 0.20-kg stone is held 1.3 m above the top edge of a water well and then dropped into it. The…
A: Given data- Mass of stone m=0.20 kg Height above the top edge of a water well h=1.3 m Depth of…
Q: 1. A 0.66-kg object with an initial velocity of 3.30 m/s in the positive x-direction is acted on by…
A: According to guidelines we need to solve only first question kindly repost other questions in the…
Q: 2. A person pushes a 2500 kg car from rest to a speed of v, doing 5000 J of work in the process. If…
A: The mass of the car is given as m = 2.5 x 103 kg.The work done by the mechanic is given as W = 5000…
Q: 1. A 40 meter chain hangs vertically from a cylinder attached to a winch. Assume there is now…
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Q: 1. A car of mass 800 kg moves at a constant speed of 36 km/hr up a 1 in 8 incline. The top of the…
A: g=Acceleration due to gravity=9.81 m/s2m=Mass of car=800 kgv=Velocity of car=36 km/hr=363.6 m/s
Q: 8. A box with mass 10 kg is sitting at rest on a horizontal floor. At time t = 0, an attached rope…
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Q: Three blocks with masses m1 = 4.31 kg, m2 = 8.73 kg, and m3 = 17.2 kg, respectively, are attached by…
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Q: person pushes a m = 2.60 kg carton a distance d = 4.20 m along the floor by a constant for agnitude…
A: Given:- m= 2.60 kg d= 4.20 m F= 16.0 N θ=30° Find:- (a) Determine the work done on the carton…
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- Power of the Human Heart. The human heart is a powerful and extremely reliable pump. Each day it takes in and discharges about 7500 L of blood. Assume that the work done by the heart is equal to the work required to lift this amount of blood a height equal to 1.5 m. The density (mass per unit volume) of blood is 1050 kg/m3 . What is the heart's power output. Use g = 9.8m/s22. An ocean diver swims upwards against the drag force exerted by the water. This force varies in magnitude by depth (d) and is given by F(d)=√d, where y=100 N/m ¹/2. If the diver ascends from a depth of d=10m to the surface (d=0), what is the work done by this drag force? Why is this work negative?1. A 5kg block is push up a rough, inclined surface by a constant force of 20N. The surface is inclined at an angle of 15° and the force is applied completely horizontally and parallel to the ground below the incline. (Not parallel to the inclined surface). As a result, the velocity of the block increases from 0 m/s to 4 m/s in a displacement of 10m. A)What work was done by the frictional force during this displacement? B)What would have been the final velocity if friction was not present? C) Why was the final kinetic energy without friction higher than the total kinetic energy with friction?
- A chain is held on a frictionless table with one fourth hanging over the edge. If the chain has a length of 57 cm and a mass of 0.020 kg, how much work is required to pull the hanging part back onto the table. Use g = 10 N/kg.A farmer is using a rope and pulley to lift a bucket of water from the bottom of a well that is hy = 9.5 m deep. The farmer uses a force F1 = 59.5 N to pull the bucket of water directly upwards. The total mass of the bucket of water is mb + mw = 3.1 kg. a.Calculate how much work Wf in J the farmer does on the bucket of water (via the rope) to raise it to ground level. b.Calculate how much work Wg in J gravity does on the bucket filled with water as the farmer lifts it up the well. c. Calculate the net work Wnet in J done on the bucket of water by the two forces F1 and Fg.8. A vertical spring is 10.0 cm long when carrying a load of 20.0 kg and 12.0 long when carrying a load of 32.0 kg. How much work is required to stretch the spring from 10.0 cm to 15.0 cm?
- 1. A 4.0 kg particle is moving at a velocity v = V2î – V2ĵ + 3k m/s. (a) (b) What is the particle's kinetic energy at this moment? What is the net work done on the particle if its velocity changes to - V2î + 3k m/s? V = - Assume that a force in the x y plane acts on the particle to slow it down (imagine (c) that this force is a type of friction). Will the particle's kinetic energy become zero under the influence of this force? Explain your answer.Power of the Human Heart. The human heart is a powerful and extremely reliable pump. Each day it takes in and discharges about 7500 L of blood. Assume that the work done by the heart is equal to the work required to lift this amount of blood a height equal to 1.5 m. The density (mass per unit volume) of blood is 1050 kg/m3 . What is the heart's power output. Use g = 9.8m/s2 Calculate answer to one decimal.2. A 3.00 kg object is initially at rest on a horizontal surface. An applied force acts on the object in the +x-direction. Assume there is friction in the system as well. The Net Work done on the object is 50.0 J over a distance of 7.00 m. a) What is the object's Change in Kinetic Energy? Do Not Overthink this! b) What Net Force acted on this object?
- 5. A person pulls an object of mass 40 kg as far as 20 m above a flat floor at a constant speed. The force used is directed 370 upwards horizontally. The coefficient of kinetic friction of the object with the floor is 0.20. Determine the work by the person, the work by the frictional force, and the total work on the object.1. A visibly distraught Granny has emerged from her car (it seems everyone has been ignoring her and talking about planets), and is trying to get back on the road. She puts a shoulder against the rear bumper of her car (m 1600 kg) and applies a constant force of 20.0 N for a full 20.0 seconds. The car does not budge. How much work has Granny done? -Physics sample problems about vectors. Thought I knew how to do them but keep getting wrong answers.