. A car traveling 56.0 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.13 s later. (a) What is the magnitude of the car's constant acceleration before impact? (b) How fast is the car traveling at impact
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.
(b) How fast is the car traveling at impact?
(b) How long was it falling?
(c) What was its speed when it passed the halfway point on the way down?
(d) How long had it been falling when it passed the halfway point?
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