You're holding a physics book in your hands 0.8 m above the ground. The book has...
You're holding a physics book in your hands 0.8 m above the ground. The book has a potential energy of 200 J with respect to the ground. Then you release the book so that it falls toward the ground. Ignoring air friction, what is the kinetic energy of the book at the moment when it passes a height of 0.2 m above the ground? (in J)
Homework Answers
By Energy Conservation Law,
Consider the points from 0.8 m height to 0.2 m height
Also, Potential Energy is directly proportional to height
Fro Energy equation,
As initial velocity was zero,
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You're holding a physics book in your hands 0.8 m above
the ground. The book has...
You're holding a physics book in your hands 0.8 m above the ground. The book has...
You're holding a physics book in your hands 0.8 m above the ground. The book has a potential energy of 200 J with respect to the ground. Then you release the book so that it falls toward the ground. What is the potential energy of the book at the moment when it passes a height of 0.2 m above the ground? (in J)
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as it drops to her hands?
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You drop a 2.50 kg textbook to a friend who stands on the ground at distance...
You drop a 2.50 kg textbook to a friend who stands on the ground
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You drop a 2.50 kg textbook to a friend who stands on the ground
at distance D = 10.0 m below. Your friend's outstretched hands are
at distance d = 1.50 m above the ground.
(a) How much work Wg does the gravitational force do on the book
as it drops to her hands?
(b) What is the change ΝU in the gravitational potential energy
of the textbook-Earth system during the drop?
(c) If the gravitational potential energy of that...
You drop a 2.50 kg textbook to a friend who stands on the ground
at distance D = 10.0 m below. Your friend's outstretched hands are
at distance d = 1.50 m above the ground.
(a) How much work Wg does the gravitational force do on the book
as it drops to her hands?
(b) What is the change ΝU in the gravitational potential energy
of the textbook-Earth system during the drop?
(c) If the gravitational potential energy of that...
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