A 2.4 kg mess kit sliding on a frictionless surface explodes into two 1.2 kg parts, one moving at 3.9 m/s, due north, and the other at 6.7 m/s, 20° north of east. What is the original speed of the mess kit? Number i Units
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- Two balls collide elastically as shown in the diagram. MA РА Assuming the balls have equal mass, what are the final velocities of the two balls? Assume: mA VOA 10 m/s PA MB ma = mb OA = 45° and 0B = 45° P'B MBBall B, moving in the positive direction of an x axis at speed v, collides with stationary ball A at the origin. A and B have different masses. After the collision, B moves in the negative direction of the y axis at speed v/3. In what direction does A move, as an angle with respect to the x axis? Number i UnitsA 20 gg ball of clay traveling east at 2.0 m/sm/s collides with a 20 gg ball of clay traveling north at 2.0 m/sm/s. What is the speed of the resulting 40 gg ball of clay? Express your answer with the appropriate units.
- A basketball (m=0.60 kg) is dropped from rest. Just before striking the floor, the ball has a momentum whose magnitude is 3.1 kg-m/s. At what height was the basketball dropped? iTwo objects are on a collision course. Object #1 has a mass of 13.4 kg and an initial velocity of 12.3 m/s i. Object #2 has a mass of 7.53 kg and an initial velocity of -3.69 m/s i. If the system is isolated and the objects stick together upon colliding, what amount of energy is lost in the collision? Assume that all quantities are good to 3 significant figures, All numeric answers should be entered rounded to 3 significant figure.A railroad car of mass 2.85 x 10^4 kg moving at 2.60 m/s collides and couples and with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. A. what is the speed of the three coupled cars after the collision? B. how much kinetic energy is lost in the collision?
- B Two balls roll horiztonally off the edge of a 1.29 m tall table. Ball A has a mass of 2.4 kg and is moving at 1.4 m/s when it leaves the table. Ball B has a mass of 4.9 kg and is moving at 7.7 m/s when it leaves the table. Both balls leave the table at the same instant. Which ball hits the ground first? Ball B Same Time O Ball A Cannot Tell How much time does it take Ball B to hit the ground after leaving the table? How far from the edge of the table does Ball A land? (horizontal distance) m How far from the edge of the table does Ball B land? (horizontal distance) mProblem 2: A 10 grams bullet moving at 800 m/sec hits 1000 grams block of wood and stays inside the block. The block had been originally at rest and is free to move. Immediately after the collision the block-bullet system starts to move up a ramp that is incline at 30 degrees. The coefficient of kinetic friction between the block and the ramp surface is 0.30. How far up the ramp will the block and bullet system move after the collision before coming to rest?*Problem 2: т An object is initially moving in the positive y-hat direction with a speed of 1 The object then explodes into three S m pieces. Piece 1 has a mass of 0.5 kg and moves with a velocity of 2£ + 3ŷ. Piece 2 has a mass of 0.35 kg and m moves with a velocity of -3£ + 1ŷ. Piece 3 has a mass of 0.15 kg. a) Draw a picture of the situation. b) Apply conservation of momentum to this problem. c) Find the velocity of piece 3. (Answer: 0.33£ – 5.7ŷ)
- Two objects, A and B, with masses 3.2 kg and 1.8 kg, move in a frictionless horizontal surface. Object A moves to the right at a constant speed of 5.1 m/s while object B moves to the right at a constant speed of 1.4 m/s. They collide and stick together. a) Find the total kinetic energy of the system after the collision. b) Is the kinetic energy of the system conserved? Explain.Question Vị = 8 m/s A Vi = 16 m/s Objects A and B (Mass A = 6kg, Mass B = 4kg) have a head-on collision as shown. Immediately before the collision, Object A has a velocity of 8 m/s to the right, and Object B has a velocity 16 m/s to the left. Immediately after the collision, Object A has a velocity 4 m/s to the left. What is the magnitude and direction of the velocity of Object B ilmmediately after the collision? %3D AnswerCart A has a mass 245 g. Cart B has a mass 406 g. The carts are on a frictionless track. Cart A is initially moving towards Cart B at a speed of 1.65 m/s and Cart B is initially moving towards Cart A at a speed 0.75 m/s. Determine the velocities of the cart after the collision. Determine the total kinetic energy of the carts after the collision.