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An astronaut has left an orbiting spacecraft to test a new personal maneuvering unit. As she moves along a straight line, her partner on the spacecraft measures her velocity every 2.0s, starting at timet= 1.0 s: Find the average x-acceleration, and state whether the speed of the astronaut increases or decreases over each of these 2.0s time intervals: 1.0 s 0.8 m/s 9.0 s -0.4 m/s 3.0 s 1.2 m/s 11.0 s -1.0 m/s 5.0 s 1.6 m/s 13.0 s -1.6 m/s 7.0 s 1.2 m/s 15.0 s -0.8 m/s (a) t = 1.0 s to t2 = 3.0 s; (b) t1 = 5.0 s to t2 = 7.0 s (c) t =9.0 s to t2 = 11.0 s; (d) t = 13.0 s to t2 15.0 s.

An astronaut has left an orbiting spacecraft to test a new personal maneuvering unit. As she moves along a straight line, her partner on the spacecraft measures her velocity every 2.0s, starting at timet= 1.0 s: Find the average x-acceleration, and state whether the speed of the astronaut increases or decreases over each of these 2.0s time intervals: 1.0 s 0.8 m/s 9.0 s -0.4 m/s 3.0 s 1.2 m/s 11.0 s -1.0 m/s 5.0 s 1.6 m/s 13.0 s -1.6 m/s 7.0 s 1.2 m/s 15.0 s -0.8 m/s (a) t = 1.0 s to t2 = 3.0 s; (b) t1 = 5.0 s to t2 = 7.0 s (c) t =9.0 s to t2 = 11.0 s; (d) t = 13.0 s to t2 15.0 s.

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An astronaut has left an orbiting spacecraft to test a new personal maneuvering unit. As she moves along a straight line, her partner on the spacecraft measures her velocity every 2.0s, starting at time t = 1.0 s: Find the average x-acceleration, and state whether the speed of the astronaut increases or decreases over each of these 2.0s time intervals: 1.0 s 0.8 m/s 9.0 s -0.4 m/s 3.0 s 1.2 m/s 11.0 s -1.0 m/s 5.0 s 1.6 m/s 13.0 s -1.6 m/s 7.0 s 1.2 m/s 15.0 s -0.8 m/s (a) t = 1.0 s to t2 = 3.0 s; (b) t = 5.0 s to t2 = 7.0 s (c) ti = 9.0 s to t2 = 11.0 s; (d) t = 13.0 s to t2 = 15.0 s.
Transcribed Image Text:An astronaut has left an orbiting spacecraft to test a new personal maneuvering unit. As she moves along a straight line, her partner on the spacecraft measures her velocity every 2.0s, starting at time t = 1.0 s: Find the average x-acceleration, and state whether the speed of the astronaut increases or decreases over each of these 2.0s time intervals: 1.0 s 0.8 m/s 9.0 s -0.4 m/s 3.0 s 1.2 m/s 11.0 s -1.0 m/s 5.0 s 1.6 m/s 13.0 s -1.6 m/s 7.0 s 1.2 m/s 15.0 s -0.8 m/s (a) t = 1.0 s to t2 = 3.0 s; (b) t = 5.0 s to t2 = 7.0 s (c) ti = 9.0 s to t2 = 11.0 s; (d) t = 13.0 s to t2 = 15.0 s.
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