You are driving through town at 16 m>swhen suddenly a car backs out of a driveway in front of you. Youapply the brakes and begin decelerating at 3.2 m>s2. (a) How muchtime does it take to stop? (b) After braking half the time found inpart (a), is your speed 8.0 m>s, greater than 8.0 m>s, or less than8.0 m>s? (c) Find your speed after braking half the time found inpart (a).
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.
You are driving through town at 16 m>s
when suddenly a car backs out of a driveway in front of you. You
apply the brakes and begin decelerating at 3.2 m>s2
. (a) How much
time does it take to stop? (b) After braking half the time found in
part (a), is your speed 8.0 m>s, greater than 8.0 m>s, or less than
8.0 m>s? (c) Find your speed after braking half the time found in
part (a).
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