1015_chap16

1015_chap16 - ME240 (16.2 HW:16.52,16.72 :16.49,16.54...

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t i f Li Mt d It ME 240 Conservation of Linear Momentum and Impacts (16.2) HW: 16.52, 16.72 Supplemental Problems: 16.49, 16.54

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Problem 15.126. Mail sorting machine drops parcels moving 2 ft/s down a th Th bh t t t smooth ramp. They are brought to rest by a linear spring. What should spring stiffness k be such that max deceleration is <10g’s? What would be the max spring deflection to expect? 2 20
Pendulum Collision Balls

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Bowling ball A traveling at 6 ft/sec collides with ball B, which is at rest contact with ball C Given: in contact with ball C. Given: W A =16 lb, W B =13 lb, W C =15 lbs, e AB =0.98, e BC =0.94. Determine post impact velocities of all 3 balls. 2

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1015_chap16 - ME240 (16.2 HW:16.52,16.72 :16.49,16.54...

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