The function s= - +³+3t²-3t, 0≤t≤ 3, gives the position of a body moving on a coordinate line, with s in meters and t in seconds. a. Find the body's displacement and average velocity for the given time interval. b. Find the body's speed and acceleration at the endpoints of the interval. c. When, if ever, during the interval does the body change direction?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
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Chapter6: The Trigonometric Functions
Section6.5: Trigonometric Graphs
Problem 57E
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The function s= -t³ + 3t² - 3t, 0≤t≤ 3, gives the position of a body moving on a
coordinate line, with s in meters and t in seconds.
a. Find the body's displacement and average velocity for the given time interval.
b. Find the body's speed and acceleration at the endpoints of the interval.
c. When, if ever, during the interval does the body change direction?
a. What is the body's displacement for the given time interval?
m (Simplify your answer.)
What is the average velocity for the given time interval?
m/s (Simplify your answer.)
b. What is the body's speed at t=0?
m/s (Simplify your answer.)
What is the body's speed at t = 3?
m/s (Simplify your answer.)
What is the body's acceleration at t=0?
m/s² (Simplify your answer.)
What is the body's acceleration at t = 3?
m/s² (Simplify your answer.)
Transcribed Image Text:The function s= -t³ + 3t² - 3t, 0≤t≤ 3, gives the position of a body moving on a coordinate line, with s in meters and t in seconds. a. Find the body's displacement and average velocity for the given time interval. b. Find the body's speed and acceleration at the endpoints of the interval. c. When, if ever, during the interval does the body change direction? a. What is the body's displacement for the given time interval? m (Simplify your answer.) What is the average velocity for the given time interval? m/s (Simplify your answer.) b. What is the body's speed at t=0? m/s (Simplify your answer.) What is the body's speed at t = 3? m/s (Simplify your answer.) What is the body's acceleration at t=0? m/s² (Simplify your answer.) What is the body's acceleration at t = 3? m/s² (Simplify your answer.)
c. When, if ever, during the interval does the body change direction? Select the correct
choice below and, if necessary, fill in the answer box to complete your choice.
OA. t= sec
B. There is no solution.
Transcribed Image Text:c. When, if ever, during the interval does the body change direction? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. t= sec B. There is no solution.
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