Imagine you are in charge of figuring out the maximum speed of a very foggy road. Consider a road that we cannot see anything beyond 15 meters. Suppose that human reaction time is 0.3s and the deceleration from pressing the brake is -10m/s². What should be the speed limit for this road in [m/s]? Hint: during the reaction time, the car still moves with constant speed. The car starts slowing down when the brake is pressed.
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.
![Imagine you are in charge of figuring out the maximum speed of a very foggy road. Consider a road that
we cannot see anything beyond 15 meters. Suppose that human reaction time is 0.3s and the
deceleration from pressing the brake is -10m/s².
What should be the speed limit for this road in [m/s]?
Hint: during the reaction time, the car still moves with constant speed. The car starts slowing down
when the brake is pressed.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F28e2e603-ecab-45a4-8f55-ede3fe263a81%2Fbd616744-13f3-4b72-ae0f-d6ef578fc660%2Fv9zgag_processed.png&w=3840&q=75)
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