3. A car is moving with constant speed of 80 km h-' when suddenly the driver sees a cat 50 m straight ahead of the car. The driver's reaction time is 0.5 s and the maximum deceleration of the car is 10 m s-2. a) Calculate the total distance travelled by the car from the moment the driver sees the cat until it stopped. What happens to the cat? b) Sketch acceleration against time graph to show the motion of the car.
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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