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6 A comet, travelling in space, enters the atmosphere of a planet Fig 1.1 is the speed-time graph for the comet from time 1 = 0 5 40 000 speed m/s 30 000 20 000 ter whic is (i) acce 1 uniform ulate this tant vel 1 15 the is the 1 late the 10 000 4.0 8.0 12.0 time/s 16.0 O Fig. 1.1 (a) (0) During the period t= 0s to t = 6.0 s, both the speed of the comet and the velocity of the State what this suggests about the motion of the comet, comet remain constant. he OF .... (1) (ii) Determine the distance travelled during the period t = Os to t = 6.0 s. |
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