A 4.80-kg watermelon is dropped from rest from the m of a 25.0.m-tall building and feels no
Question:
(a) Calculate the work done by gra on the watermelon during its displacement from the m of to the ground.
(b) Just before it strikes the ground, what is the watermelon's (i) kinetic energy and (ii) speed?
(c) Which of the answers in pans (a) and (b) would be different if there were appreciable air resistance?
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pay IDENTIFY Only gravity does work on the watermel...View the full answer
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Related Book For 
University Physics with Modern Physics
ISBN: 978-0133977981
14th edition
Authors: Hugh D. Young, Roger A. Freedman
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