3. A rock is dropped from a bridge that is 28 meters above a river. How long does it take the rock to hit the water? 4. A lacrosse ball that is thrown straight upwards reaches a maximum height of 4.5 meters. At what speed was it thrown? 5. A soccer player heads the ball and sends it flying vertically upwards at a speed of 12.0 m/s. How high above the players' head does the ball travel?
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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