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.
Musical Instruments: A student is learning to play guitar. She places a finger on a string so that 0.14 m of the string is free to vibrate, but clamped at both ends. She does not know it, but the speed of waves in the string is 176 m/s.
She really likes the note she played, so she buys some wood to build a resonant cavity that will amplify this particular pitch: a wooden box open at one end. How long should she make the box?
Assume the speed of sound in air is 340 m/s.
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