An object is moving horizontally along a straight line. Its position, in metres, after t seconds is described by the position function s(t)=r' - 4r² +t, t20 a) Determine velocity and acceleration functions. b) Determine the velocity and acceleration at t = 2. Is the object speeding up or slowing down at that time? Justify your answer.

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Topics In Analytic Geometry
Section: Chapter Questions
Problem 33CT
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An object is moving horizontally along a straight line. Its position, in metres, after t seconds,
is described by the position function s(t)=r' - 4r² +t, t20
a)
Determine velocity and acceleration functions.
b)
Determine the velocity and acceleration at t = 2.
Is the object speeding up or slowing down at that time? Justify your answer.
Transcribed Image Text:An object is moving horizontally along a straight line. Its position, in metres, after t seconds, is described by the position function s(t)=r' - 4r² +t, t20 a) Determine velocity and acceleration functions. b) Determine the velocity and acceleration at t = 2. Is the object speeding up or slowing down at that time? Justify your answer.
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