311_Dynamics 11ed Manual

311_Dynamics 11ed Manual - Engineering Mechanics Dynamics g...

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Engineering Mechanics - Dynamics Chapter 15 v 2z v 1z g W 0 t 1 t ct W d + = v 2z 36.93 ft s = v 2 v 2x 2 v 2y 2 + v 2z 2 + = v 2 150.34 ft s = * Problem 15-12 The twitch in a muscle of the arm develops a force which can be measured as a function of time as shown in the graph. If the effective contraction of the muscle lasts for a time t 0 , determine the impulse developed by the muscle. Solution: I 0 t 0 t F 0 t T e t T d = F 0 t 0 T () e t 0 T TF 0 + = IF 0 T 11 t 0 T + e t 0 T = Problem 15-13 From experiments, the time variation of the
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

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