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Two identical pucks, A and B, slide over a level ice floor without friction. Initially, puck B is stationary. Puck A approaches puck B with momentum p, and collides with it, as shown in the fig- ure. After the collision, puck A moves with momentum p,, and puck B with momentum p, . The associated kinetic energies are K,, K, , and K,, respectively. The angle between p, and p, is 0. a. Explain why p, +p, = P, in this situation. b. Explain why K, +K, = K, in this situation. c. Calculate p² = Po·Po in terms of p, and p, . d. Calculate K,, K,, and K, in terms of p,, P,, and p, . 1' Combine your answers of parts c. and d. to find the angle 0 between p, and p, . е.

Two identical pucks, A and B, slide over a level ice floor without friction. Initially, puck B is stationary. Puck A approaches puck B with momentum p, and collides with it, as shown in the fig- ure. After the collision, puck A moves with momentum p,, and puck B with momentum p, . The associated kinetic energies are K,, K, , and K,, respectively. The angle between p, and p, is 0. a. Explain why p, +p, = P, in this situation. b. Explain why K, +K, = K, in this situation. c. Calculate p² = Po·Po in terms of p, and p, . d. Calculate K,, K,, and K, in terms of p,, P,, and p, . 1' Combine your answers of parts c. and d. to find the angle 0 between p, and p, . е.

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Two identical pucks, A and B, slide over a level ice floor without friction. Initially, puck B is stationary. Puck A approaches puck B with momentum p, and collides with it, as shown in the fig- ure. After the collision, puck A moves with momentum p,, and puck B with momentum p, . The associated kinetic energies are K,, K, , and K,, respectively. The angle between p, and p, is 0. a. Explain why p, +p, = P, in this situation. b. Explain why K, +K, = K, in this situation. c. Calculate p² = Po·Po in terms of p, and p, . d. Calculate K,, K,, and K, in terms of p,, P,, and p, . 1' Combine your answers of parts c. and d. to find the angle 0 between p, and p, . е.
Transcribed Image Text:Two identical pucks, A and B, slide over a level ice floor without friction. Initially, puck B is stationary. Puck A approaches puck B with momentum p, and collides with it, as shown in the fig- ure. After the collision, puck A moves with momentum p,, and puck B with momentum p, . The associated kinetic energies are K,, K, , and K,, respectively. The angle between p, and p, is 0. a. Explain why p, +p, = P, in this situation. b. Explain why K, +K, = K, in this situation. c. Calculate p² = Po·Po in terms of p, and p, . d. Calculate K,, K,, and K, in terms of p,, P,, and p, . 1' Combine your answers of parts c. and d. to find the angle 0 between p, and p, . е.
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