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In a game of billiards, ball A is given an initial velocity v0 along the longitudinal axis of the table. It hits ball B and then ball C, which are both at rest. Balls A and C are observed to hit the sides of the table squarely at A' and C'. respectively, and ball B is observed to hit the side obliquely at B'. Knowing that
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- In a game of pool, ball A is moving with a velocity of 58 m/s when it strikes balls B and C, which are at rest and aligned as shown. Knowing that after the collision the three balls move in the directions indicated and velocity of the ball B after impact is 35.5 m/sec. Assuming frictionless surfaces and perfectly elastic impact, determine the magnitude of velocity for balls A and C after impact. V=58 A Aarrow_forwarda.) What is the speed of marble B just after impact? b.) What is the magnitude of the impulse exerted by marble B on marble A?arrow_forward2. At the figure shown, object A and B was released at the same time. Object A has an initial velocity of 3m/s . If object A and B strikes each other at a horizontal distance of 30m, detemine (a) initial velocity of B (b) time when the two objects reached the ground (c) vertical distance at which particle A is launched. A 45° aa = 1m/s² ag = 0.5m/s² B 60°arrow_forward
- Watch out for that tree! George of the jungle is swinging on a vine and when he is at his lowest point in the swing he has a horizontal velocity of 15 m/s. At that moment his friend Ape the ape jumps onto George with a horizontal velocity of 4 m/s in the opposite direction that George is moving and they swing together until they hit a tree when they are 5m above the lowest point in the swing. The mass of George is 85 kg and the mass of Ape is 23 kg. With what velocity do they hit the tree?arrow_forwardTwo spheres of equal mass, A and B, are projected off the edge of a 2.0 m bench. Sphere A has a horizontal velocity of 5.0 m/s and sphere B has a horizontal velocity of 2.0 m/s If both spheres leave the edge of the table at the same instant, sphere A will land at the same time as sphere B. at some time after sphere B. at some time before sphere B There is not enough information to decide If both spberesleave th e odge of the table at the same inctant cphere Aarrow_forwardBall A has a mass of 3 kg and is moving with a velocity of (vA)ı = 8 m/s when it makes a direct collision with ball B, which has a mass of 2.5 kg and is moving with a velocity of (vB)1 = 5 m/s. Suppose that e = 0.8. Neglect the size of the balls. (v), Part A Determine the velocity of A just after the collision measured to the right. Express your answer to three significant figures and include the appropriate units. Enter positive value if the velocity is directed to the right and negative value if the velocity is directed to the left. (vA)2 = Part B Determine the velocity of B just after the collision measured to the right. Express your answer to three significant figures and include the appropriate units. Enter positive value if the velocity is directed to the right and negative value if the velocity is directed to the left. (vB)2 =arrow_forward
- Q6. As shown in the image below, the spring (with spring constant k = 2.4 kN/m) is fixed to block A, and block B is pressed against the spring. The masses of blocks A and B are mà = 19 kg and m² = 15 kg, respectively. The spring is initially compressed by 240 mm, and then both blocks are released from rest. Determine the velocity of block A at the instant block B loses contact with the spring. Right is considered the positive direction and negative sign must be included if the velocity points to the left. (Hint, neglect friction, and since there is no impulsive force, energy is conserved.) 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. Your Answer: Answer A www k units Barrow_forwardB' 14.51 In a game of billiards, ball A is given an initial velocity v along the longitudinal axis of the table. It hits ball B and then ball C, which are both at rest. Balls A and C are observed to hit the sides of the 1.8 m – 1.2 m - table squarely at A' and C', respectively, and ball B is observed to hit the side obliquely at B'. Knowing that vo = 4 m/s, v, = 1.92 m/s, and a = 1.65 m, determine (a) the velocities v and vc of balls B and C, (b) the point C' where ball C hits the side of the table. Assume friction- less surfaces and perfectly elastic impacts (i.e., conservation of energy). 0.75 m VB Vo B 0.75 m C' A' Fig. P14.51arrow_forwardTwo balls, B1 and B2 each with are initially resting on the floor. They are 15 centimeters apart B1 is to the left of B2. B3 with mass of 2kg rolls in from the right at 3.00 metres per second and strikes B2. After that collision B3 is traveling at 2.00 metres per second to the right. B2 strikes B1. After that collision B2 is traveling at 1.00 metre per second to the right. What is the velocity and direction of B1 after that collision?arrow_forward
- A 40-Mg boxcar A is moving in a railroad switchyard with a velocity of 9 km/h toward cars B and C , which are both at rest with their brakes off at a short distance from each other. Car B is a 25-Mg flatcar supporting a 30-Mg container, and car C is a 35-Mg boxcar. As the cars hit each other they get automatically and tightly coupled. Determine the velocity of car A immediately after each of the two couplings, assuming that the container (a) does not slide on the flatcar, (b) slides after the first coupling but hits a stop before the second coupling occurs, (c) slides and hits the stop only after the second coupling has occurred.arrow_forwardA golf ball is struck from A with a velocity Va=7 ft/s as shown bellow. VA B 45° 10° Determine: 1. the distance d at which it will land (put your answer in the cell bellow) 2. the speed at which it strikes the ground at B, this answer must be on your hand-written work 3. the time of the flight from A to B, this answer must be on your hand- written workarrow_forwardIn slow pitch softball, the underhand pitch must reach a maximum height of between 1.8 m and 3.7 m above the ground. A pitch is made with an initial velocity vo with a magnitude of 13 m/s at an angle of 33° with the horizontal. Determine (a) if the pitch meets the maximum height requirement, (b) the height of the ball as it reaches the batter.arrow_forward
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