269_Dynamics 11ed Manual

269_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 14 * Problem 14-40 The skier starts from rest at A and travels down the ramp. If friction and air resistance can be neglected, determine his speed v B when he reaches B . Also, find the distance d to where he strikes the ground at C , if he makes the jump traveling horizontally at B . Neglect the skier’s size. He has a mass M . Given: M 70 kg = h 1 50 m = θ 30 deg = h 2 4m = Solution: Guesses v B 1 m s = t 1s = d 1m = Given Mg h 1 h 2 () 1 2 Mv B 2 = v B td cos = h 2 d sin 1 2 gt 2 = v B t d Find v B t , d , = t 3.753 s = v B 30.0 m s = d 130.2 m = Problem 14-41 A spring having a stiffness k is compressed a distance δ .
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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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