Refer to the position vs. time graph for the car. Assume that time t is in units of hours and position x is in units of kilometers. (attached image) Question #8 - Over what interval(s) does the car move with negative constant velocity? A. B-C, D-E B. All intervals C. None of the intervals D. A-B, C-D, and E-F E. O-A Question #9 - In what interval(s) is the car’s acceleration zero? A. B-C, D-E B. All intervals C. None of the intervals D. A-B, C-D, and E-F E. O-A Question #10 - During what interval(s) does the car exceed a 10 km/hr speed limit in any direction? A. D-E B. All intervals C. None of the intervals D. O-A and D-E E. O-A
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
Refer to the position vs. time graph for the car. Assume that time t is in units of hours and position x is in units of kilometers. (attached image)
Question #8 - Over what interval(s) does the car move with negative constant velocity?
A. B-C, D-E
B. All intervals
C. None of the intervals
D. A-B, C-D, and E-F
E. O-A
Question #9 - In what interval(s) is the car’s acceleration zero?
A. B-C, D-E
B. All intervals
C. None of the intervals
D. A-B, C-D, and E-F
E. O-A
Question #10 - During what interval(s) does the car exceed a 10 km/hr speed limit in any direction?
A. D-E
B. All intervals
C. None of the intervals
D. O-A and D-E
E. O-A
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