
Concept explainers
a.
To find: The velocity of the particle at any time t.
a.

Answer to Problem 81RE
Explanation of Solution
Given information: A particle moves along the x-axis so that at any time
is given by
Calculation:
b.
To find: The acceleration of the particle at any time t.
b.

Answer to Problem 81RE
Explanation of Solution
Given information: A particle moves along the x-axis so that at any time
position is given by
Calculation:
c.
To find: All values of t for which the particle is at rest.
c.

Answer to Problem 81RE
t=2.
Explanation of Solution
Given information :A particle moves along the x-axis so that at any time
position is given by
Calculation:
Factor the velocity function x'(t) to find when it is equal to 0. This is when t=2 and t=-2, but since we are only considering positive values of t, we disregard t=-2. The particle is at rest when t=2.
d.
To find: The speed of the particle when its acceleration is zero
d.

Answer to Problem 81RE
12 is the speed of the particle when its acceleration is zero.
Explanation of Solution
Given information :A particle moves along the x-axis so that at any time
position is given by
Calculation :
e.
To find: The particle moving toward the origin or away from the origin when t =3.
e.

Answer to Problem 81RE
toward the origin.
Explanation of Solution
Given information: A particle moves along the x-axis so that at any time
position is given by
Calculation :
Therefore the particle is moving toward the origin,
Chapter 3 Solutions
Calculus: Graphical, Numerical, Algebraic
Additional Math Textbook Solutions
Thinking Mathematically (6th Edition)
Basic Business Statistics, Student Value Edition
College Algebra with Modeling & Visualization (5th Edition)
Introductory Statistics
A First Course in Probability (10th Edition)
University Calculus: Early Transcendentals (4th Edition)
- Prove 11.1.2arrow_forward39. (a) Show that Σeak converges for each α > 0. (b) Show that keak converges for each a > 0. k=0 (c) Show that, more generally, Σk"eak converges for each k=0 nonnegative integer n and each a > 0.arrow_forward#3 Find the derivative y' = of the following functions, using the derivative rules: dx a) y-Cos 6x b) y=x-Sin4x c) y=x-Cos3x d) y=x-R CD-X:-:TCH :D:D:D - Sin f) Sin(x²) (9) Tan (x³)arrow_forward
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning





