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Bookmarks People window Help tps://edugen willeyplus.com/edugen/student/mainfr.uni M G Google a Amazon.com Yo... PRNSL Email M UM Email a YouTube Vacation Rentals, Twitter n Facebook Log in Grammarly t Coogle Translate Halliday, Fundamentals of Physics, 10e PHYSICS FOR SCIENCE AND ENGINEERING (PHYs 2110/2120) Assignment Gradebook ORION Chapter 09, Problem 028 In tae-kwon-do, a hand is slammed down onto a target at a speed of 12 m/s and comes to a stop during the 4.0 ms collision. Assume that during the impact the hand is independent of the am and has a mass of 0.80 kg. What are the magnitudes of the Ca) impulse and (b) average foron on the hand from the target? (a) Number (b) Number click if you would like to show work for this questiona open Show work By accessing this Question Assistance, you wil learn while you earn points based on the Port potential policy set by your instructor Question Attempts o of s used save ronureR MeKITANSAER Earn Maximum Points available only if you answer this question copyright 20oo2017 br ichn wiey sons, inc. or related companies. Al rights reserved. R20co 201z zahn wares sens unc. All Rights Reserved. A Drvision of s sans lor.

Explanation / Answer

Impulse acting = Change of momentum

Change of momentum = m(v2 -v1) = 0.80(0 - 12)= - 9.6 Kg.m/s

(a) Magnitude of impulse = 9.6 Kg.m/s

(b) Average Force acting = Impulse / Collision time = 9.6 / ( 4.0 x 10 -3) = 2400 Newton

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