A BRAKING PROBLEM In coming to a stop, a car leaves a skid mark 92.0m long on a highway. Assuming a deceleration of 7 m/s², what is the speed of the car just before breaking? NOW, TO BREAK YOUR SPIRIT A 75-m-long train begins uniform acceleration from rest. The front of the train has a speed of 18m/s when it passes a railway worker who is standing 180m from where the front of the train started. What will be the speed of the last car as it passes the worker?
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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