Suppose a police officer is 1/2 mi the intersection at 45 mph. At the intersection, driving east (away fr officer's radar gun indicates 20 m straight-line distance between th of 20 mph). What is the speed of Speed = mph.
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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Suppose a police officer is 1/2 mile south of an intersection, driving north towards
the intersection at 45 mph. At the same time, another car is 1/2 mile east of the
intersection, driving east (away from the intersection) at an unknown speed. The
officer's radar gun indicates 20 mph when pointed at the other car (that is, the
straight-line distance between the officer and the other car is increasing at a rate
of 20 mph). What is the speed of the other car?
Speed = mph.
Speed:
=
Now suppose that the officer's radar gun indicates -20 mph instead (that is, the
straight-line distance is decreasing at a rate of 20 mph). What is the speed of the
other car this time?
E
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