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6. An object moves along the x-axis. The graph shows its position x as a function of time t. Find ( point) the average velocity of the object from points B to C x (m) 10 8 6 2 t (s) 0 1 23 4 5 6 1.8 m/s 1.0 m/s 1.5 m/s 0.67 m/s10. A person is walking briskly in a straight line. The figure shows a graph of the persons position (1 point) x as a function of time t. What is the persons average velocity between t-6 s andt-10 s? x (m) 8 6 4 2 0 1 5 6 7 8 9 10 11S 2 1.3 m/s O0.8 m/s 1.5 m/s 0.6 m/s

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Answer #1

nt k inean, which means veloey is changi y we have o Join Bto e ey et eae メ(s) the at poin tD 3 .OptionBブ 6 6

For (10), similarly as before join the t = 6s to t = 10s by the line AB, then,

Average velocity = Slope of line AB = BC/CA

= 3.5/4 = 0.8 m/s

Option (b).

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