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5. A cat of mass m is sitting at the front end ofa ) J7 wagon of mass M that is initially at rest [see
5. A cat of mass m is sitting at the front end ofa ) J7 wagon of mass M that is initially at rest [see Vcc 5;- 1 gure}. At one point, the cat walks the entire H15 .F . length of the wagon as a constant speed Vca, relative to ground. a} What is the speed of the wagon relative to ground, Vwa? (4 marks] 13] As soon as the cat reaches the other end of the wagon, it jumps out of it to the left. with velocity Vcw. relative to the wagon and oriented parallel to the ground. What is the new velocity of the wagon relative to ground. Vwa. immediately after the jump? (6 marks). c] Did the system cat+wagon gain or lose any mechanical energy during the jump? If yes, how much? [2 marks)
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