Dynamics 15-96| Determine the angular momentum Ho of each of the two particles about point O.

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Question: Determine the angular momentum Ho of each of the two particles about point O.

Problem 15-96 from:

Engineering Mechanics: Dynamics, 14th edition
Russell C. Hibbeler

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Hi..
Please I need answers to the following two questions
Q1/ F15-18. Disk A weighs 2 lb and slides on the smooth horizontal plane with a velocity of 3 ft/s. Disk B weighs 11 lb and is initially at rest. If after impact A has a velocity of 1 ft/s, parallel to the positive x axis, determine the speed of disk B after impact. 43 ft/s 1 in. AA F15-18
Q2/ As shown in Fig. (a), the ball A of mass m = 0.2 kg is dropped on a rigid sur face inclined at 0 = 30° to the horizontal. The coefficient of restitution for the impact is 0.8, and friction between the ball and the surface is negligible. Deter mine (1) the rebound speed v2 and the rebound angle a; and (2) the percentage of kinetic energy lost during the impact.

eng_aqeeel
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2nd one is wrong, its says right answer is -142

marcotrolo