A boat is cruising in a straight line at a constant speed of 2.8 m/s when it is shifted into neutral. After coasting 13 m the engine is engaged again, and the boat resumes cruising at the reduced constant speed of 1.8 m/s.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 20P
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Please answer part A, B, and C

Question 11
11 of 16
Review
A boat is cruising in a straight line at a constant
speed of 2.8 m/s when it is shifted into neutral.
After coasting 13 m the engine is engaged again,
and the boat resumes cruising at the reduced
constant speed of 1.8 m/s.
Assuming constant acceleration while coasting, how much time did it take for the boat to coast the 13 m?
Express your answer using two significant figures.
ΑΣφ
?
t =
S
Submit
Request Answer
Part B
What was the boat's acceleration while it was coasting?
Express your answer using two significant figures.
?
a =
m/s²
Submit
Request Answer
▼
Part C
What was the speed of the boat when the boat when it had coasted for 6.5 m?
Express your answer using two significant figures.
?
V =
m/s
Transcribed Image Text:Question 11 11 of 16 Review A boat is cruising in a straight line at a constant speed of 2.8 m/s when it is shifted into neutral. After coasting 13 m the engine is engaged again, and the boat resumes cruising at the reduced constant speed of 1.8 m/s. Assuming constant acceleration while coasting, how much time did it take for the boat to coast the 13 m? Express your answer using two significant figures. ΑΣφ ? t = S Submit Request Answer Part B What was the boat's acceleration while it was coasting? Express your answer using two significant figures. ? a = m/s² Submit Request Answer ▼ Part C What was the speed of the boat when the boat when it had coasted for 6.5 m? Express your answer using two significant figures. ? V = m/s
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