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60 The ropes are attached to the ceiling and taut. (3) This problem refers to Figure 2c above with m 400 kg. a) Suppose the rocket is not present and the beam is not accelerating. What is the tension in each rope? b Now, suppose instead that the rocket is present and firing and the tension in each rope is 1000 N. What force must the rocket exert on mass m so that the beam does not accelerate? (4) In Figure 2d above, m 400 kg. Initially the mass is moving upwards at 12.0 m/s. Four seconds later its velocity is 16 m/s downwards. Assuming constant acceleration, what is the tension in the ropes during those four seconds?
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soluhong aj vohen fock et is absot ㄒ ㄒ han et force on nlet orce or b-eam 사 T: 23 09.46N, Rocket on he bm. Let F be the forteeyestion t Solution ake upward directa pv anc eve TS1w四 T 3

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