A policeman is standing on the side of the road eating donuts when a politician who stole public funds drives past him at a constant speed of 120m/s. After 3s, the policeman decided to get inside his vehicle and go after the politician. If the police vehicle accelerates uniformly at 40m/s^2 (a) How long does it take him to catch the politician and congratulate him? (b) How far has he traveled in that time? (Assume the politician remained in motion at constant speed)
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 policeman is standing on the side of the road eating donuts when a politician who stole public funds drives past him at a constant speed of 120m/s. After 3s, the policeman decided to get inside his vehicle and go after the politician. If the police vehicle accelerates uniformly at 40m/s^2
(a) How long does it take him to catch the politician and congratulate him?
(b) How far has he traveled in that time? (Assume the politician remained in motion at constant speed)
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