physics for scientists and engineers 10th edition. Chapter 2. Question 24 You are observing the poles along the side of the road asdescribed in the opening storyline of the chapter. You havealready stopped and measured the distance between adjacentpoles as 40.0 m. You are now driving again and have activatedyour smartphone stopwatch. You start the stopwatch at t 5 0as you pass pole #1. At pole #2, the stopwatch reads 10.0 s.At pole #3, the stopwatchreads 25.0 s. Your friend tells youthat he was pressing the brake and slowing down the car uniformlyduring the entire time interval from pole #1 to pole#3. (a) What was the acceleration of the car between poles #1and #3? (b) What was the velocity of the car at pole #1? (c) Ifthe motion of the car continues as described, what is thenumber of the last pole passed before the car comes to rest?
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.
physics for scientists and engineers 10th edition. Chapter 2. Question 24
You are observing the poles along the side of the road as
described in the opening storyline of the chapter. You have
already stopped and measured the distance between adjacent
poles as 40.0 m. You are now driving again and have activated
your smartphone stopwatch. You start the stopwatch at t 5 0
as you pass pole #1. At pole #2, the stopwatch reads 10.0 s.
At pole #3, the stopwatch
reads 25.0 s. Your friend tells you
that he was pressing the brake and slowing down the car uniformly
during the entire time interval from pole #1 to pole
#3. (a) What was the acceleration of the car between poles #1
and #3? (b) What was the velocity of the car at pole #1? (c) If
the motion of the car continues as described, what is the
number of the last pole passed before the car comes to rest?
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