A 1.2lb ball A is moving with a velocity vA when it is struck by a2.4lb ball B which has a velocity of vB of magnitude vB = 18 ft/s.Knowing that the velocity of ball B is zero after impact and thatthe coefficient of restitution is 0.8, determine the velocity ofthe ball A (a) before impact and (b) after impact.

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22 Apr 2019

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The three balls each weigh 0.5 lb and have a coefficient of restitution of e = 0.85. If ball A is released from rest and strikes ball B and then ball B strikes ball C, determine the velocity of each ball after the second collision has occurred. The balls slide without friction.

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A 200g steel ball A hangs on a 1.0m long string. The ball A ispulled sideways so that the string is at a 45 degree angle, thenreleased. At the very bottom of its swing the ball strikes a 1000gsteel paperweight B that is resting on a frictionless table.
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A 200g steel ball A hangs on a 1.0m long string. The ball A ispulled sideways so that the string is at a 45 degree angle, thenreleased. At the very bottom of its swing the ball strikers a 1000gsteel paperweight B that is resting on a frictionless table.

a. what is the speed the ball A just before the impact theblock?
b.what is the speed VA and VB after collison?

c.what is rebounding angle Î¸3?

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