How much work is done moving a 2.4 kg book to a shelf 4.0 m high?
Q: you push a 90 kg box across a 12 m room. it takes you 30 seconds at a steady speed. your push force…
A: The work done by the man to push the box is as follows: W=F→·d→W=Fdcosθ θ=0°W=Fd…
Q: takes 8 seconds for a 30- kg girl to climb a 9 m high flight of stairs. How much horsepower is she…
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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: How much work is done to expand a 10-cm diameter cylindrical chamber at 1 atm from a length of 10 cm…
A: Hence, the work done is 79.58 J
Q: It takes 551 N of force to balance the friction force and make a car move at a constant speed. How…
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Q: A 2kg crate sitting on a horizontal surface is pushed by a horizontally applied force of 8N. If it…
A: Given- Mass of crate m=2 kg Applied force on the crate F= 8N To find the work done in the first 6…
Q: An object is pulled along the ground by exerting a force of 45 pounds a rope that makes a 15° angle…
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Q: Your friend wants to solve the world’s energy problems by inventing a device that will deliver ten…
A: The world or the universe works on some conservation laws. The energy conservation says that energy…
Q: A heavy rope, 50 ft long, weighs 0.5 lb/ft and hangs over a building 120 ft high. How much work is…
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Q: Two students are moving 80 N of books from the floor up onto a 1.5 m platform. Student 1 moves 12…
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Q: A 5 kg block initially traveling at 4 m/s to the right slides 5 m before it comes to rest. How much…
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Q: A 75 kg person, originally at rest, sleds down a 50 m tall hill and comes to a stop. How much work…
A: Given Mass of person is m= 75 kg Height of hill is h= 50 m Acceleration due to gravity is g= 9.80…
Q: How much work is done lifting a 100 N barbell vertically 0.5 m?
A: The workdone in lifting a 100 N barbell vertically 0.5 m. given,Force(F)=100 Nheight(h) moved=0.5 m
Q: A crate (weight = 40 N) is sliding down a ramp 10 m long. The normal force on the crate is 30 N.…
A: In physics, work is defined as the product of the force applied to an object and the distance over…
Q: A bodybuilder lifts a 150 kg barbell to a height of 3.0 m. What is the work done by the bodybuilder…
A: The potential energy is given by U = m g h where, m is the mass, g is the gravity and h is the…
Q: Bob lifts three 1x102kg books 2m above the ground. How much work must Bob do to lift one book
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Q: A 10 m chain is hanging from a tall building. The chain has a density of 1.5 kg/m. At the bottom of…
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Q: How much work is done by a person lifting a 4.1 kg object from the bottom of a well at a contact…
A: Given Data: The mass of an object is, m=4.1 kg The contact speed is, v=2.2 m/s The time required for…
Q: A woman lifts her 13 -newton child up 3 meters and carries her for a distance of 10 meters to the…
A: The child is given to have a weight of 13 N. Let W=13 N This child is being lifted by their mother,…
Q: A 99.2 kg object rises by 35.8 m. How much potential energy (in joules) has this object gained?
A: Potential energy(P) is given by:- P=mgh Where, m=99.2kg g=9.81m/s^2 h=35.8m
Q: A firefighter climbs a 10 m long ladder that is inclined at 40° to the horizontal. If she has a…
A: Given Data: The length of the ladder is: L=10 m The angle of the ladder with the horizontal plane…
Q: You push your much-loved 3-kg physics book 1.25 m along a horizontal table top with a horizontal…
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Q: A 4kg box is sliding across the floor with a kinetic energy of 107 J. After friction has done -30 J…
A: Given, Mass, m= 4kg, KE, KE= 107 J, and Frictional force, Ff=-30 J.
Q: A weight lifter raises a 100 kg barbell to a height of 2 m. what is the barbell's potential energy?…
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Q: You push a heavy box along the floor with a force of 775 N for a distance of 15 meters. The…
A: Given data The force applied by the person is given as F = 775 N. The distance traveled by the…
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