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6.A super-particle travels forward along a straight cylindrical tube at 1000 m/s for 10 m and then travels at 800m/s for the next 10 m. What is the average velocity? (Think of the position vs. time graph and the meaning of theslope for a linear relationship. Refer to problem 7 first if necessary.)a.900 m/sb. 870 m/sc.550 m/sd. 700 m/s
7.On a position versus time graph, the slope of the straight line joining two points on the plotted curve that areseparated in time by the intervalt, is which of the following quantities?
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8.A particle is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.0 m/s2. What is themagnitude of the particle's displacement at 6.0 s?