A stone is dropped from rest from the top of a tower that is 42 m high. From ground level, a second stone is thrown straight upward at the same instant that the first stone is dropped. The initial speed of the second stone is exactly the same as that with which the first stone eventually hits the ground. In the absence of air resistance, the motions of the stones are just the reverse of each other. How far below the top of the tower will the two stones cross path?
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.
A stone is dropped from rest from the top of a tower that is 42 m high. From ground level, a second stone is thrown straight upward at the same instant that the first stone is dropped. The initial speed of the second stone is exactly the same as that with which the first stone eventually hits the ground. In the absence of air resistance, the motions of the stones are just the reverse of each other. How far below the top of the tower will the two stones cross path?
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