6.20 A 4.80-kg watermelon is dropped from rest from the roof of an 18.0-m-tall building and feels no appreciable air resistance. (a) Calculate the work done by gravity on the watermelon during its displacement from the roof to the ground. (b) Just before it strikes the ground, what is the watermelon's (0) kinetic energy and ii) speed? (C) Which of the answers in parts (a) and (b) would be different if there were appreciable air resistance? 6.206.20 • A 4.80-kg watermelon is dropped from rest from the roofof an 18.0-m-tall building and feels no appreciable air resistance.(a) Calculate the work done by gravity on the watermelon duringits displacement from the roof to the ground. (b) Just before itstrikes the ground, what is the watermelon's (i) kinetic energy and(ii) speed? (c) Which of the answers in parts (a) and (b) would bedifferent if there were appreciable air resistance?

Given Mass of object m = 4.8 kg h = 18 m

Answered: A 4.80-kg watermelon is dropped from…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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6.20 A 4.80-kg watermelon is dropped from rest from the roof of an 18.0-m-tall building and feels no appreciable air resistance. (a) Calculate the work done by gravity on the watermelon during its displacement from the roof to the ground. (b) Just before it strikes the ground, what is the watermelon's (0) kinetic energy and ii) speed? (C) Which of the answers in parts (a) and (b) would be different if there were appreciable air resistance?

6.20
6.20 • A 4.80-kg watermelon is dropped from rest from the roof
of an 18.0-m-tall building and feels no appreciable air resistance.
(a) Calculate the work done by gravity on the watermelon during
its displacement from the roof 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 parts (a) and (b) would be
different if there were appreciable air resistance?

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