A speeding motorist zooms past a stationery police car, which then heads after the speeder. The police car starts with zero velocity and is going at twice the car's velocity when it catches up to the car. So if some intermediate instant the police car must be going at the same velocity as a speeding car. When is that instant? Is it : Closer to the time when the police car starts chasing? Closer to the time when the police car catches the speeder? Or halfway between the times when the two cars coincide
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 speeding motorist zooms past a stationery police car, which then heads after the speeder. The police car starts with zero velocity and is going at twice the car's velocity when it catches up to the car. So if some intermediate instant the police car must be going at the same velocity as a speeding car. When is that instant? Is it : Closer to the time when the police car starts chasing? Closer to the time when the police car catches the speeder? Or halfway between the times when the two cars coincide
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