Which statements are true about the 1D equation of motion: x(t) = xo + vot + at? Select all correct. A) The units of velocity are m/s2. B) The units of acceleration are m/s. C) xo is the current position of the object. D) The acceleration a must be constant for this equation to be used. E) vo is the average velocity of the object.

Which statements are true about the 1D equation of motion: x(t) = xo + vot + at? Select all correct. A) The units of velocity are m/s2. B) The units of acceleration are m/s. C) xo is the current position of the object. D) The acceleration a must be constant for this equation to be used. E) vo is the average velocity of the object.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 46P: The Acela is an electric train on the WashingtonNew YorkBoston run, carrying passengers at 170 mi/h....

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The Acela is an electric train on the WashingtonNew YorkBoston run, carrying passengers at 170 mi/h. A velocitytime graph for the Acela is shown in Figure P2.46. (a) Describe the trains motion in each successive time interval. (b) Find the trains peak positive acceleration in the motion graphed. (c) Find the trains displacement in miles between t = 0 and t = 200 s. Figure P2.46 Velocity versus time graph for the Acela.
The Acela is an electric train on the Washington-New YorkBoston run, carrying passengers at 170 mi/h. A velocity-time graph for the Acela is shown in Figure P2.69. (a) Describe the train's motion in each successive lime interval, (b) Find the trains peak positive acceleration in the motion graphed, (c) Find the trains displacement in miles between t = 0 and t = 200 s.
In Figure 2.11b, the area under the velocitytime graph and between the vertical axis and time t (vertical dashed line) represents the displacement. As shown, this area consists of a rectangle and a triangle. (a) Compute their areas. (b) Explain how the sum of the two areas compares with the expression on the right-hand side of Equation 2.16.
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