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A 900-lb space vehicle traveling with a velocity
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Vector Mechanics for Engineers: Dynamics
- Q2. As shown in the image below, the freight cars A and Bare approaching each other, and they have a mass of ma 24 Mg and mB = 13 Mg, respectively. The directions of their initial velocities are shown in the image, and the speeds are vA,1 = 2.9 m/s and vB,1 = 2.7 m/s. Determine the velocity of A after collision if the cars collide and rebound, such that Bmoves to the right with a speed of 2.1 m/s. 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 Sl unit. VA,1 A VB,1 В Your Answer: Answer unitsarrow_forward1. The two blocks shown weigh W = 60lb and W, = 40lb . If the blocks are released from rest from the position shown, determine the velocity of block B A В after it has moved 10 ft. Use Constraint Equations (for pulley), Equation of Motion (Newton's second law), and the Principle of Work and Energy. NOT allowed to use Chegg or other such websites. NOT allowed to use Chegg or other such websites B.arrow_forwardA system consists of three identical 14.32-lb particles A, B, and C. The velocities of the particles are, respectively, vA = vA j, vB = vBi, and vC = vCk. The angular momentum of the system about O expressed in ft·lb·s is HO = -1.2k. Determine the velocities of the particles. (You must provide an answer before moving to the next part.) The velocity of particle A is ( ft/s)j. The velocity of particle B is ( ft/s)i. The velocity of particle C is ( ft/s)k.arrow_forward
- Two cars collide at an intersection. Car A, with a mass of 2027 kg, is going from west to east, while car B, of mass 1535 kg, is going from north to south at 18 m/s. As a result of this collision, the two cars stick together and they moved at an angle of 65° south of east from the point of impact. How fast (in m/s) were the entangled cars moving just after the collision? North |B West - East Southarrow_forwardA 900 kg car travelling at 12 m/s due east collides with a 600 kg car travelling at 24 m/s due north. As a result of the collision, the two cars lock together and move in what final direction?arrow_forwardQ4. As shown in the image below, the freight cars A and B are approaching each other, and they have a mass of mA = 23 Mg and mB = 15 Mg, respectively. The directions of their initial velocities are shown in the image, and the speeds are VÃ,1 · 2.5 m/s and VB,1 = 2.1 m/s. If the two cars collide and get stuck together, then move with the same velocity, determine their common velocity after the collision. Right is considered the positive direction and negative sign must be included if they move 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 Sl unit. A Your Answer: VA,1 Answer units B VB.1arrow_forward
- vehicles are approaching a road junction, both moving with speed (12.5 m/s). One vehicle has mass 1000 kg and the other mass kg, and the roads meet at an angle of 60° as shown. The vehicles collide and initially move as a single body. ss of Car A= 100 kg ss of Car B = 70 kg A 12.5 m/s B 60° 12.5 m/s culate the magnitude of the velocity of the two vehicles immediately after the collision (treating them as a gle body) (m/s) culate the linear momentum in the vector form of car B. (m/s) culate the linear momentum in the vector form of car A. (m/s) Choose... Choose... Choose... 4arrow_forwardA rocketship has 9 modules each with a mass of 15 200 kg and moves at a speed of 7.0 km/s. One of the modules is explosively propelled away from the rocketship at a speed of 1350 km/h with respect to the rocketship, opposite in direction from the original travel direction of the rocket ship.What is the resulting change in the speed of the rocketship?arrow_forwardA system consists of three particles A, B, and C. We know that *, -1 kg, *, - 2 kg, and mc - 3 kg and that the velocities of the particles expressed in mis ane, respectively, 4 - 34 - 2j + 4k, *g = 4i+3) and vc*-21 + 5j-3k. Determine the angular momentum H, of the system about O.arrow_forward
- An expert archer demonstrates his ability by hitting tennis balls thrown by an assistant. A 2-oz tennis ball has a velocity of (32 ft/s)i- (7 ft/s)j and is 33 ft above the ground when it is hit by a 1.2-oz arrow traveling with a velocity of (165 ft/s)j + (230 ft/s)k where j is directed upwards. Determine the position P where the ball and arrow will hit the ground, relative to point O located directly under the point of impact.arrow_forwardPlease asaparrow_forwardAt a crossroads, vehicle B heading south and vehicle A heading north-east at an angle of 300 collided. After the collision, the two vehicles were interlocked and drifted together at a velocity v, making a 100 angle in the north-east direction. The mass of vehicle A is 1500 kg and the mass of vehicle B is 1200 kg. The speed of vehicle A before the collision is known to be 50 km / h. Find the pre-collision velocity of vehicle B? 90 Kg B 160 Kg 30°arrow_forward
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