The velocity vs. time graph for an object moving along a straight path is shown in the figure below. (m/s) 6 4 2 t(s) 20 15 10 -2 -4 -8 (i) Find the average acceleration of this object during the following time intervals. 0 s to 5.0 s (a) m/s2 5.0 s to 15 s (b) m/s2 (c) 0 s to 20 s m/s2 (ii) Find the instantaneous accelerations at the following times. 2.0 s (a) m/s2 10 s (b) m/s2 18 s (c) m/s2

The velocity vs. time graph for an object moving along a straight path is shown in the figure below. (m/s) 6 4 2 t(s) 20 15 10 -2 -4 -8 (i) Find the average acceleration of this object during the following time intervals. 0 s to 5.0 s (a) m/s2 5.0 s to 15 s (b) m/s2 (c) 0 s to 20 s m/s2 (ii) Find the instantaneous accelerations at the following times. 2.0 s (a) m/s2 10 s (b) m/s2 18 s (c) m/s2

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 15P: A parcel of air moving in a straight tube with a constant acceleration of 4.00 m/s2 has a velocity...

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A parcel of air moving in a straight tube with a constant acceleration of 4.00 m/s2 has a velocity of 13.0 m/s at 10:05:00 a.m. (a) What is its velocity at 10:05:01 a.m.? (b) At 10:05:04 a.m.? (c) At 10:04:50 a.m.? (d) Describe the shape of a graph of velocity versus time for this parcel of air. (e) Argue for or against the following statement: Knowing the single value of an objects constant acceleration is like knowing a whole list of values for its velocity.
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