Two balls of equal size are dropped from the same height from the roof of a building. One ball has twice the mass of the other. When the balls reach the ground, how do the kinetic energies of the two balls compare? The lighter one has one-fourth as much kinetic energy as the other does. The lighter one has one half as much kinetic energy as the other does. The lighter one has the same kinetic energy as the other does. The lighter one has twice as much kinetic energy as the other does.

Two balls of equal size are dropped from the same height from the roof of a building. One ball has twice the mass of the other. When the balls reach the ground, how do the kinetic energies of the two balls compare? The lighter one has one-fourth as much kinetic energy as the other does. The lighter one has one half as much kinetic energy as the other does. The lighter one has the same kinetic energy as the other does. The lighter one has twice as much kinetic energy as the other does.

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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Concept explainers

Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.

Question

Two balls of equal size are dropped from the same height from the roof of a building. One ball has twice the mass of the other. When the balls reach the
ground, how do the kinetic energies of the two balls compare?
The lighter one has one-fourth as much kinetic energy as the other does.
The lighter one has one half as much kinetic energy as the other does.
The lighter one has the same kinetic energy as the other does.
The lighter one has twice as much kinetic energy as the other does.

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