a car travels a distance d = 21.1m in the positive x direction in a time t1=22.7s, at which the point the car brakes, coming to a rest in t2=5.08s
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 car travels a distance d = 21.1m in the positive x direction in a time t1=22.7s, at which the point the car brakes, coming to a rest in t2=5.08s
During the first part of the motion, the car is traveling with a constant velocity v1. We can find this velocity using the formula:
v1 = d / t1
Substituting the given values, we get:
v1 = 21.1 m / 22.7 s = 0.93 m/s
During the second part of the motion, the car is decelerating with a constant acceleration a, until it comes to a stop. We can find the acceleration using the formula:
a = (v_f - v_i) / t
where v_f is the final velocity (which is zero), v_i is the initial velocity (which is v1), and t is the time it takes to come to a stop (which is t2).
Substituting the given values, we get:
a = (0 - 0.93 m/s) / 5.08 s
= -0.183 m/s^2
So the deceleration of the car is 0.183 m/s^2.
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