At time t≥ 0, the velocity of a body moving along the horizontal s-axis is v= t² - 4t + 3. (a) Find the body's acceleration each time the velocity is zero. (b) When is the body moving forward? Backward? (c) When is the body's velocity increasing? Decreasing?

At time t≥ 0, the velocity of a body moving along the horizontal s-axis is v= t² - 4t + 3. (a) Find the body's acceleration each time the velocity is zero. (b) When is the body moving forward? Backward? (c) When is the body's velocity increasing? Decreasing?

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter3: Polynomial Functions

Section3.5: Mathematical Modeling And Variation

Problem 7ECP: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the...

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Question

At time t≥ 0, the velocity of a body moving
along the horizontal s-axis is v = t² - 4t + 3.
(a) Find the body's acceleration each time the velocity is zero.
(b) When is the body moving forward? Backward?
(c) When is the body's velocity increasing? Decreasing?

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