Physics for Scientists and Engineers
10th Edition
ISBN: 9781337553278
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 6, Problem 24AP
A car travels clockwise at constant speed around a circular section of a horizontal road as shown in the aerial view of Figure P6.24. Find the directions of its velocity and acceleration at (a) position Ⓐ and (b) position Ⓑ.
Figure P6.24
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A car initially travelingeastward turns north by travelingin a circular path atuniform speed as shown inFigure P7.15. The length of the arc ABC is 235 m, and the car completes the turn in 36.0 s.(a) Determine the car’s speed. (b) What is the magnitude anddirection of the acceleration when the car is at point B?
The length of the arc is 250 meters, and the time to turn is 37 seconds. Calculate
the x-component of the acceleration (in m/s2) at point B, where the angle is 69°.
3. A car initially traveling
v eastward turns north by
traveling in a circular
path at uniform speed
as shown in Figure P6.3.
The length of the arc
ABC is 235 m, and the
B)
y
Calculate the average speed in m/s. The numbers:
• Length of the arc: 219 meters
• Time to turn: 49 seconds
35.0°
C
В
car completes the turn
in 36.0 s.
Now calculate the y-component of the average acceleration. The book itself is
6)
unclear whether what's asked for is the average of the vector, the magnitude of
A
the vector average, or the average of the magnitude. But the answer at the back
of the book indicates the vector.
Figure P6.3
• Length of the arc: 227 meters
• Time to turn: 46 seconds
A boy whirls a stone in a horizontal circle of radius 1.5 m and at height 2.0 m above level ground. The string breaks, and the stone flies off horizontally and strikes the ground after traveling a horizontal distance of 10 m.What is the magnitude of the centripetal acceleration of the stone during the circular motion?
Chapter 6 Solutions
Physics for Scientists and Engineers
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