PHY2053 Physics 1, Test 1 Review - 6 A super-particle travels forward along a straight cylindrical tube at 1000 m\/s for 10 m and then travels at 800 m\/s

PHY2053 Physics 1, Test 1 Review - 6 A super-particle...

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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 800 m/s for the next 10 m. What is the average velocity? (Think of the position vs. time graph and the meaning of the slope for a linear relationship. Refer to problem 7 first if necessary.) a. 900 m/s b. 870 m/s c. 550 m/s d. 700 m/s 7. On a position versus time graph, the slope of the straight line joining two points on the plotted curve that are separated in time by the interval t, is which of the following quantities? 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 the magnitude of the particle's displacement at 6.0 s?

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