4. A stone is thrown straight down from the observation deck of a tall building 450 meters above the ground at a speed of 5 meters/sec. Assume that the acceleration due to gravity is a constant function -9.8 m2. (1) Find the distance of the stone above the ground at time t, i.e. its position at time t. (2) When does the stone Hit the ground? At what speed does it hit the ground?
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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