# on14 - of an interaction impulse is the area under the...

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Solution for On-Line Homework 14 Work I Solution to On-Line Homework Problem 14.1() Problem: Two balls are dropped from a height of 4 m (the Frst deck in the parking garage). Ball 1 bounces up to a height of 3 m, Ball 2 bounces up to a height of 2 m. Which ball received a greater magnitude of impulse from the collision with the ground? Select One of the ±ollowing: (a-Answer) Ball 1. (b) Ball 2. (c) Both received the same impulse. (d) There is no way to tell without knowing the in- ertias of the balls. (e) There is no way to tell without knowing the how long the collision took. Solution Impulse is the change in momentum caused by the applica- tion of a force. When one examines the ±orce-Time curve

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Unformatted text preview: of an interaction, impulse is the area under the curve dur-ing the instant of application. However, this area is always equal to the change in momentum of the system or ob-ject receiving the impulse. Ball 1 has a larger magnitude change in momentum. 1 Total Points for Problem: 2 Points Solution to On-Line Homework Problem 14.2() Problem: Can an external force do work on a system if the point of application of that force is not displaced? Select One of the Following: (a) yes (b-Answer) no (c) Toby was here Solution No. Since W = F ext Δ x then if the displacement is zero the work is zero. Total Points for Problem: 2 Points 2...
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## This note was uploaded on 05/04/2008 for the course PHYS 2054 taught by Professor Stewart during the Spring '08 term at Arkansas.

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on14 - of an interaction impulse is the area under the...

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