A 1.50 kg snowball is fired from a cliff I2.5 m high. The snowball's initial velocity is

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A 1.50 kg snowball is fired from a cliff I2.5 m high. The snowball's initial velocity is 14.0 m/s, directed 41.0o above the horizontal.

(a) How much work is done on the snowball by the gravitational force during its flight to the flat ground below the cliff?

(b) What is the change in the gravitational potential energy of the snowball-Earth system during the flight?

(c) If that gravitational potential energy is taken to be zero at the height of the cliff what is its value when the snowball reaches the ground?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Posted: Jan 10, 2011 07:08 AM

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A 1.50 kg snowball is fired from a cliff I2.5 m high. The snowball's initial velocity is

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a The force of gravity is constant so the work it does is given b...View the full answer

Fundamentals of Physics

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