7. A 5.20 g bullet moving at 672 m/s strikes a 700 g wooden block at rest on a frictionless surface. The bullet emerges, traveling in the same direction with its speed reduced to 428 m/s. (a) What is the resulting speed of the block? (b) What is the speed of the bullet-lock center of mass?
7. A 5.20 g bullet moving at 672 m/s strikes a 700 g wooden block at rest on a frictionless surface. The bullet emerges, traveling in the same direction with its speed reduced to 428 m/s. (a) What is the resulting speed of the block? (b) What is the speed of the bullet-lock center of mass?
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Transcribed Image Text:7. A 5.20 g bullet moving at 672 m/s strikes a 700 g wooden block at rest on a
frictionless surface. The bullet emerges, traveling in the same direction with its speed
reduced to 428 m/s. (a) What is the resulting speed of the block? (b) What is the
speed of the bullet-lock center of mass?
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