3. A soccer player kicks a soccer ball – the collision between the player's leg and the ball is perfectly elastic. Before the kick, the velocity of the player's leg is 5 m/s and the ball is at rest. The mass of the player's leg is 10 kg and the mass of a soccer ball is 0.5 kg. What is the velocity of the soccer ball after the kick?
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- A 300 Kg red bumper car is traveling with a velocity of +2.5 m/s. Over a 0.5 second time frame it has collided, head-on, into a 500 Kg black bumper car that is initially at rest. After the elastic collision, the red bumper car transfers all its momentum to the black bumper car. What is the final velocity of the red bumper car?A bullet with mass m1 = 3 g is fired into a wooden block of mass m2 = 2 kg, that hangs like a pendulum. The bullet is embedded in the block (complete inelastic collision). The block with the bullet embedded in it goes h = 40 cm high after collision. Determine the speed of the bullet before it hit the block. a. 1570 m/s c. 1670 m/s b. 1870 m/s d. 1770 m/sA 1.2kg ball is traveling to the right at 4.5m/s. It collides with a 2.1kg ball moving to the left at 1.5m/s. The collision is totally elastic. What is the velocity of the 2.1kg ball after the collision?
- A young 45 kg45 kg ice hockey goalie, originally at rest, deflects a 0.14 kg0.14 kg hockey puck slapped at him at a speed of 34.5 m/s34.5 m/s. In this problem, take the original direction of the puck as positive. Suppose the goalie and the hockey puck have an elastic collision and the puck is reflected back in the direction from which it came. What would the final velocity, in meters per second, of the goalie be in this case?Ball A, whose mass is 12.0 kg, is moving with a velocity of 37.0 m when it suddenly hits another ball at rest, Ball B. After the collision, Ball A continues to move with a velocity of 19.0 m/s while Ball B moves with a velocity of 4.00 m/s. What is the mass of Ball B?A 99 g steel ball bearing rolls to the right at 172 cm/s and makes an elastic head-on collision with another steel ball bearing with a mass of 72 g that is initially at rest. After the collision, the 99 g ball moves at 48.47 cm/s. a.The final velocity of the 72 g ball bearing in SI units is b.
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- A green pool ball (p = 30 kg x m/s) moves towards a yellow pool ball (p = -9 kg x m/s). Then, the two pool balls collide. After the collision, the green pool ball has a momentum of 3 kg x m/s. How much momentum does the yellow pool ball have after the collision? Explain your answer.6. You are sitting in a sled, at rest on a pond covered with nice, thick, frictionless ice. Your own mass is 90.2 kg, and the mass of the sled when empty is 20.4 kg. From shore, someone throws a baseball of mass 0.106 kg to you, and you catch it; the horizontal component of the ball s velocity is 32.5 m/s. What will be the sled s (and your) speed with respect to the surface of the pond after you catch the ball? 16.8 cm/s 2.49 cm/s 3.11 cm/s 3.81 cm/sTwo clay balls collide and stick. Ball 1 has a mass of 3 kg and an initial velocity of 10 m/s in the positive x direction. Ball 2 has a mass of 10 kg and an initial velocity of 12 m/s in the negative x direction. What is the final velocity of the combined mass?