The position of a particle is given by s = 0.30t³ -0.70t² - 2.50t + 4.99, where s is in feet and the time t is in seconds. Plot the displacement, velocity, and acceleration as functions of time for the first 8 seconds of motion. After you have the plots, answer the questions as a check on your work. -1 Questions: + + + 0 1 2 When t = 1.8 sec, V = When t = 6.5 sec, V= i i + 3 --+s, ft ft/sec, ft/sec, The positive time at which the particle changes direction is i a = a = i i sec. ft/sec² ft/sec²

The position of a particle is given by s = 0.30t³ -0.70t² - 2.50t + 4.99, where s is in feet and the time t is in seconds. Plot the displacement, velocity, and acceleration as functions of time for the first 8 seconds of motion. After you have the plots, answer the questions as a check on your work. -1 Questions: + + + 0 1 2 When t = 1.8 sec, V = When t = 6.5 sec, V= i i + 3 --+s, ft ft/sec, ft/sec, The positive time at which the particle changes direction is i a = a = i i sec. ft/sec² ft/sec²

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

5th Edition

ISBN:9781305084766

Author:Saeed Moaveni

Publisher:Saeed Moaveni

Chapter6: Fundamental Dimensions And Units

Section: Chapter Questions

Problem 49P

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Concept explainers

Length and Length related Variables

Length can de defined as the measurement or extent of physical quantities or objects from one terminal to another terminal. Stone age humans used finger length, step length, and so on to measure the size or displacement of an object. Nowadays, depending on how precise the measurement requires to be and the object’s size is measured, we use measuring devices for measurements like rulers and steel tape. Most people have used a ruler or tape measure to measure a particular distance or the size of an object. For more precise measurements of tiny objects, the development of measurement tools such as the Vernier caliper, which permits us to measure dimensions within 1/1000 of an inch. In the last few decades, electronic distance measuring instruments (EDMI) have been implemented that permit us to measure distances from a few feet to many miles with reasonable accuracy.

Question

The position of a particle is given by s = 0.30t³ -0.70t² - 2.50t + 4.99, where s is in feet and the time t is in seconds. Plot the
displacement, velocity, and acceleration as functions of time for the first 8 seconds of motion. After you have the plots, answer the
questions as a check on your work.
Questions:
0
1
When t = 1.8 sec, V =
When t = 6.5 sec, V =
●+
2
i
i
+s, ft
ft/sec,
ft/sec,
The positive time at which the particle changes direction is i
a =
a =
i
i
sec.
ft/sec²
ft/sec²

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