The car moves to the right between positions A and ®. (A x (m) 60 B x (m) Ax 40 -60 -50 -40 -30 -20 -10 10 20 30 40 50 60 20 Δι. (D x (m) 60 -60 -50 -40 -30 -20 –10 10 20 30 40 50 -20 The car moves to E - 40 the left between positions © and E. t (s) 50 -60 10 20 30 40 b a Figure 2.1 A car moves back and forth along a straight line. Because we are interested only in the car's translational motion, we can model it as a particle. Several representations of the information about the motion of the car can be used. Table 2.1 is a tabular representation of the information. (a) A pictorial representation of the motion of the car. (b) A graphical representation (position-time graph) of the motion of the car.
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.
Find the displacement, average velocity, and average speed of the car in part a shown between positions Ⓐ and Ⓕ.
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