A car travels around a circle at a constant speed of 20.0 m/s. A magnetic compass in the car indicates that it's direction of travel changes from North to northeast in 4.00 seconds. A. Find the change in the cars velocity during this interval. B. Determine the average acceleration.

Principles of Physics: A Calculus-Based Text
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Chapter1: Introduction And Vectors
Section: Chapter Questions
Problem 69P: A pirate has buried his treasure on an island with five trees located at the points (30.0 m, 20.0...
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A car travels around a circle at a constant speed of 20.0 m/s. A magnetic compass in the car indicates that it's direction of travel changes from North to northeast in 4.00 seconds. A. Find the change in the cars velocity during this interval. B. Determine the average acceleration.
a.
much to reach elevation 3495 m?
310⁰ 1.5m/51
J20
Y= 1.5 sin 10=260=²20=274m/
(Jacques is moving up +014 m/s faster)
135
&m/si
63495-3325=120
120/.26
=461.53
13 m/s
25/55=
4. A car travels around a circle at a constant speed of 20.0 m/s. A magnetic compass in the car
indicates that its direction of travel changes from north to northeast in 4.00 seconds. (a) Find the
change in the car's velocity during this interval. (b) Determine the average acceleration.
5 1.1
res 15 246M
120/274
437.95
James 4+x²9) tan (₁) = 41.81
X=√5 /
on the ques
It will take Jacques 437.95 seconds
and Francois 461.53 seconds
(80745
5. A boater travels 25 m, east directly across a river that flows south at 2.0 m/s. The boat's speed
through the water is 3.0 m/s. (a) In what direction is the boat headed? (b) Determine the time for
the boater to cross the river.
->25m
0
a. The boat is headed 41.81 sonth of east)
b. 11.18 se Conds,
Transcribed Image Text:a. much to reach elevation 3495 m? 310⁰ 1.5m/51 J20 Y= 1.5 sin 10=260=²20=274m/ (Jacques is moving up +014 m/s faster) 135 &m/si 63495-3325=120 120/.26 =461.53 13 m/s 25/55= 4. A car travels around a circle at a constant speed of 20.0 m/s. A magnetic compass in the car indicates that its direction of travel changes from north to northeast in 4.00 seconds. (a) Find the change in the car's velocity during this interval. (b) Determine the average acceleration. 5 1.1 res 15 246M 120/274 437.95 James 4+x²9) tan (₁) = 41.81 X=√5 / on the ques It will take Jacques 437.95 seconds and Francois 461.53 seconds (80745 5. A boater travels 25 m, east directly across a river that flows south at 2.0 m/s. The boat's speed through the water is 3.0 m/s. (a) In what direction is the boat headed? (b) Determine the time for the boater to cross the river. ->25m 0 a. The boat is headed 41.81 sonth of east) b. 11.18 se Conds,
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