Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter5: Displacement And Force In Two Dimensions
Section5.1: Vectors
Problem 3PP
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Question
![A person (starting from home) walks in a big open field at a constant speed
of 5 m/s due East for 30 seconds, then at a constant speed of 6 m/s in a
direction of 60° South of East for 50 seconds, and then at a constant speed of
9 m/s due South for 2 minutes and then they stop. What is the magnitude
of the average velocity of this person from the beginning of this motion to
the end of this motion?
(a) 4.87 m/s
(d) 7.87 m/s
(b) 5.87 m/s
(e) 8.87 m/s
(c) 6.87 m/s
(f) None of the above.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fae7e1a48-f652-4eff-bac3-22098fe673b9%2F004e1c45-b795-4d32-a61a-730c964a9ac2%2Fijeqb5_processed.png&w=3840&q=75)
Transcribed Image Text:A person (starting from home) walks in a big open field at a constant speed
of 5 m/s due East for 30 seconds, then at a constant speed of 6 m/s in a
direction of 60° South of East for 50 seconds, and then at a constant speed of
9 m/s due South for 2 minutes and then they stop. What is the magnitude
of the average velocity of this person from the beginning of this motion to
the end of this motion?
(a) 4.87 m/s
(d) 7.87 m/s
(b) 5.87 m/s
(e) 8.87 m/s
(c) 6.87 m/s
(f) None of the above.
![Suppose that a strong wind, having a constant acceleration of 5.0 m/s²,
blowing parallel to the ground. If a rock is launched directly upward from
the ground with an initial speed of 14.7 m/s, determine how far it will be
from this launch point when the rock comes back to hit the ground.
(а) 12.5 m
(d) 27.5 m
(Ъ) 27.5 m
(е) 32.5 m
(c) 22.5 m
(f) None of the above.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fae7e1a48-f652-4eff-bac3-22098fe673b9%2F004e1c45-b795-4d32-a61a-730c964a9ac2%2Fmg36pmb_processed.png&w=3840&q=75)
Transcribed Image Text:Suppose that a strong wind, having a constant acceleration of 5.0 m/s²,
blowing parallel to the ground. If a rock is launched directly upward from
the ground with an initial speed of 14.7 m/s, determine how far it will be
from this launch point when the rock comes back to hit the ground.
(а) 12.5 m
(d) 27.5 m
(Ъ) 27.5 m
(е) 32.5 m
(c) 22.5 m
(f) None of the above.
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