Il A motorist is traveling at 20 m/s. He is 60 m from a stop light when he sees it turn yellow. His reaction time, before stepping on the brake, is 0.50 s. What steady deceleration while braking will bring him to a stop right at the light?
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.
![Question 2: (For this problem simply interpret the situation by drawing a motion
diagram showing the object's position and its velocity vectors. Do not solve this
problem using any mathematics.)
49. | A motorist is traveling at 20 m/s. He is 60 m from a stop light
when he sees it turn yellow. His reaction time, before stepping
on the brake, is 0.50 s. What steady deceleration while braking
will bring him to a stop right at the light?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbbdfb5de-a7aa-4a47-982c-e707666ecf1b%2Fd88b0893-6c71-46f9-aefb-ab9d21930ec0%2Fgroy1r_processed.jpeg&w=3840&q=75)
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