Neglecting air resistance, three objects of different sizes are dropped simultaneously vertically down, 30 meters from the ground. What can you say about the vertical motion of the objects as they hit the ground? Only the rate of change of velocity for the three objects are the same Only the time for the three objects to reach the ground is the same The velocity, acceleration and time to reach the bottom are the same Only the rate of change of position of the three objects are the same
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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