. A car approaches a junction at 20 m/s. Traffic light at the junction suddenly turned red when the car is 15 m away. The driver reaction time is 0.5 s and the brakes decelerate the car steadily at 10 m/s^2. Where does the car stop? * a. 15 m past the traffic light b. 20 m past the traffic light c. At the traffic light d. 5 m before the traffic light e. None of the above
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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