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_1. An object moves to the right 10.0 m from the starting point in a time of 1.0 s, then to the left 20.0 m
_1. An object moves to the right 10.0 m from the starting point in a time of 1.0 s, then to the left 20.0 m in a time of 3.0 s, and then to the right 5.0 m in a time of 1.0 s. What is the average speed of the object over the whole time interval? a. 0.8 m/s b. -1.2 m/s C. 7.0 m/s d. 1.2 m/s 2. Which statement is true about the type of motion represented by this position-time graph? 50 E 40 30 Position 20 10 Time (s) a. The velocity of the object is decreasing as it moves in an eastward direction. b. The velocity of the object is increasing as it moves in an eastward direction. c. The object is moving in an eastward direction at a constant velocity. d. The velocity of the object is increasing as it moves in a westward direction. 3 What is the average acceleration for the skateboard shown on this velocity-time graph for the period of 2 s to 5 s? 20 16 12 Velocity (m/s) 2 4 Time (s) a. 4 m/s2 b. 25 m/s2 c. 3 m/s2 d. 15 m/s2 -4 . An ATV has an average acceleration of 1.9 m/s'. If the vehicle accelerates for 4 s and has an initial velocity of 13 m/s [E], what is the final velocity of the ATV? a. 26 m/s [E] b. 21 m/s [E] c. 1 1 m/s [E] d. 17 m/s [E] W
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