Chapter 2 Kinematics in one Dimension. September 17, 2014. Going around in circles …. . s=pathlength. A. x. A. . B. x=displacement. B. t=time interval (A,B) = 10 seconds. Seconds. . s. A. x. . B. DEFINITIONS. s=path length or total distance traveled.
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September 17, 2014
t=time interval (A,B) = 10 seconds
In the limit of Dt0, velocity is the slope of the tangent to the x-t curve!
xf – xi= distance traveled = v t
MOTION DOESN’T ALWAYS START AT THE ORIGIN
The position of a particle as a function of time is given by the
(a) What is the position of the particle at t=2 seconds?
(b) What is the velocity of the particle at t= 2 seconds?
(c) At what time is the particle’s velocity = 0?
(d) Is the particle ever at the origin? When?
This is called free fall.
Let’s drop an object from the top
of this building by simply releasing it.
How long will it take to get to the ground?
How fast will it be going when it gets to the
What color is the object?
Where is the origin?
IS y the same thing as x?? How can that be???