A safety measure when driving cars is to leave a separation of "3 s" with respect to the next car. This rule has made it possible to avoid many accidents. a. If a car travels at 60 km / h, what distance (in meters) will it travel in 3 seconds? Assuming there is an accident 20 m from where you are, what acceleration must you have to bring the car to a complete stop before reaching the accident? b. Repeat part a considering a speed of 90 km / h c. Repeat part a considering a speed of 120 km / h d. Repeat part a considering a speed of 150 km / h
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 safety measure when driving cars is to leave a separation of "3 s" with respect to the next car. This rule has made it possible to avoid many accidents.
a. If a car travels at 60 km / h, what distance (in meters) will it travel in 3 seconds? Assuming there is an accident 20 m from where you are, what acceleration must you have to bring the car to a complete stop before reaching the accident?
b. Repeat part a considering a speed of 90 km / h
c. Repeat part a considering a speed of 120 km / h
d. Repeat part a considering a speed of 150 km / h
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