A tennis ball is hit with a racket. The trajectory of the tennis ball is shown in the diagram below. After leaving contact with the racket, then going through the whole trajectory, and just before hitting the ground, at which point along the trajectory does the acceleration of the tennis ball have its highest magnitude? How would you convince someone with a different choice that yours fits best with the acceleration of the tennis ball?
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.
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