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Q11. As shown in the image below, the freight cars A and Bare approaching each other, and they have a mass of mA = 19 Mg and mB = 14 Mg, respectively. The directions of their initial velocities are shown in the image, and the speeds are vA,1 = 9.2 m/s and vB.1 = 6.8 m/s. If the coefficient of restitution between the bumpers is e = 0.4, determine the velocity of A after collision. Right is considered the positive direction and negative sign must be included if A moves to the left after the collision. Please pay attention: the numbers may change since they are randomized. Your answer must include 3 places after the decimal point, and proper SI unit. %3D V4,1 A VB,1 В Your Answer: Answer units

3kg ball A and 1kg ball B travels initially toward each othe. if coefficient of restitution is 0.4, find the speed of ball after impact and percentage loss of energy during impact.

An engineer is studying the impacts of frontal car collisions on the occupants.If a 1900-lb car with velocity vA = 30 mph collides head on with a 2800-lb car with velocity vb =20 mph, the coefficient of restitution of the impact is e = 0.15, then determine the velocities ofeach car after the collision. Assume car A and car B are on a flat surface, with car A traveling tothe right and car B traveling to the left.

Hi, I have an engineering dynamics question.

Q10. In the image below, the directions of the velocities of ball A and ball B before and after their collision are given. If the speeds are vA.1 = 10.1 m/s, vB.1 = 2.3 m/s, VA,2 = 2.4 m/s, and vB,2 = 6.9 m/s. Determine the coefficient of restitution e between ball A and ball B. Please pay attention: the numbers may change since they are randomized. Your answer must include 3 places after the decimal point. VA,1 VB,1 A В Before collision V4,2 VB,2 A В After collision Your Answer: Answer

Freight car A with a gross weight of 138000 lb is moving along the horizontal track in a switching yard at 3.0 mi/hr. Freight car B with a gross weight of 166000 lb and moving at 3.9 mi/hr overtakes car A and is coupled to it. Determine (a) the common velocity V of the two cars as they move together after being coupled and (b) the loss of energy |AE| due to the impact. 3.9 mi/hr Answers: (a) V = B i (b) |AE| = i 3.0 mi/hr mi/hr ft-lb

If A is stationary and B has a velocity of 15 m/s just before collision, and the blocks couple together after impact, determine the maximum compression of the spring. Express your answer to three significant figures and include the appropriate units.