car starts a race from rest on a straight track. Call its starting point x = 0m, and say the race started at t = 0s. Between t = Os and t = 8s, the car moved with constant acceleration a1, and was at x = 75m when t = 8s. Between t = 8s and t = 23s, the car moved with constant acceleration az, and was at = 272m when t=23s. a. What is a1? b. What is the car's velocity when t = 23s? c. Does the car decelerate at any point in the race? Explain your answer!
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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