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A ball is moving along a circular track. What can be said about the orientation of the velocity and acceleration vectors? Parallel Anti-parallel Perpendicular Out of phase by 180 degrees

A ball is moving along a circular track. What can be said about the orientation of the velocity and acceleration vectors? Parallel Anti-parallel Perpendicular Out of phase by 180 degrees

Physics for Scientists and Engineers, Technology Update (No access codes included)
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: Motion In Two Dimensions
Section: Chapter Questions
Problem 4.1CQ
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1. A ball is moving along a circular track. What can be said about the orientation of the velocity and acceleration vectors?

Parallel
Anti-parallel
Perpendicular
Out of phase by 180 degrees
 
2. All the following statements are false except:
a. A body moving in a straight line at a constant speed can have acceleration.
b. A body can still be accelerating even if its speed is constant.
c. A body can have a constant velocity while turning a curve.
d. A body can have a constant velocity while slowing down.
 
3. For bodies that are falling, to achieve terminal velocity, what must happen to the acceleration of the body?
a. The acceleration of the body is remains the same through time.
b. The acceleration of the body must decrease over time
c. The acceleration of the body must equal to the acceleration due to gravity.
d. The acceleration of the body must increase over time.
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