The velocity of a (fast) automobile on a straight highway is given by the function where t

Question:

The velocity of a (fast) automobile on a straight highway is given by the function

3t if 0 < t < 20 v(t) = 60 if 20 < t < 45 240 – 4t if t > 45,

where t is measured in seconds and v has units of m/s.

a. Graph the velocity function, for 0 ≤ t ≤ 70. When is the velocity a maximum? When is the velocity zero?

b. What is the distance traveled by the automobile in the first 30?

c. What is the distance traveled by the automobile in the first 60 s?

d. What is the position of the automobile when t = 75?

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Related Book For answer-question

Calculus Early Transcendentals

ISBN: 978-0321947345

2nd edition

Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

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Question Posted: Mar 09, 2019 05:19 AM

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The velocity of a (fast) automobile on a straight highway is given by the function where t

Question:

3t if 0 < t < 20 v(t) = 60 if 20 < t < 45 240 – 4t if t > 45,

Step by Step Answer:

a The velocity has a maximum of 60 for 20 t 45 The v...View the full answer

Calculus Early Transcendentals

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