You are standing next to an old well. You want to know how far down the surface of the water is (you are very thirsty), so you hold a rock above the well and drop it. You measure the amount of time between when you release the rock and when you year the splash produced when the stone hits the water at the bottom of the well to be T. You know that the speed of sound in air is vs and the acceleration due to gravity is g. Neglecting air resistance, find the depth of the well.
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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