360_Dynamics 11ed Manual

360_Dynamics 11ed Manual - Find v A2 v B2 , ( ) = v A2 v B2...

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Engineering Mechanics - Dynamics Chapter 15 The two hockey pucks A and B each have a mass M . If they collide at O and are deflected along the colored paths, determine their speeds just after impact. Assume that the icy surface over which they slide is smooth. Hint: Since the y' axis is not along the line of impact, apply the conservation of momentum along the x' and y' axes. Given: M 250 g = θ 1 30 deg = v 1 40 m s = 2 20 deg = v 2 60 m s = 3 45 deg = Solution: Initial Guess: v A2 5 m s = v B2 4 m s = Given Mv 2 cos 3 () Mv 1 cos 1 () + Mv A2 cos 1 () Mv B2 cos 2 () + = M v 2 sin 3 () Mv 1 sin 1 () + Mv A2 sin 1 () Mv B2 sin 2 () = v A2 v B2
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Unformatted text preview: Find v A2 v B2 , ( ) = v A2 v B2 6.90 75.66 m s = Problem 15-83 Two smooth coins A and B , each having the same mass, slide on a smooth surface with the motion shown. Determine the speed of each coin after collision if they move off along the dashed paths. Hint: Since the line of impact has not been defined, apply the conservation of momentum along the x and y axes, respectively. 358 Problem 15-82...
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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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