63_Dynamics 11ed - Engineering Mechanics Dynamics Chapter 12 Problem 12-79 When a rocket reaches altitude h1 it begins to travel along the

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Engineering Mechanics - Dynamics Chapter 12 When a rocket reaches altitude h 1 it begins to travel along the parabolic path ( y h 1 ) 2 = b x . If the component of velocity in the vertical direction is constant at v y = v 0 , determine the magnitudes of the rocket’s velocity and acceleration when it reaches altitude h 2 . Given: h 1 40 m = b 160 m = v 0 180 m s = h 2 80 m = Solution: bx y h 1 () 2 = bv x 2 yh 1 v y = ba x 2 v y 2 = v x2 2 b h 2 h 1 v 0 = v y2 v 0 = v 2 v x2 2 v y2 2 + = v 2 201.246 m s = a x2 2 b v 0 2 = a y2 0 m s 2 = a 2 a x2 2 a y2 2 + =
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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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