This preview shows page 1. Sign up to view the full content.
(f) The answer to part (a) is given by the slope of the straight line between
t
= 2 and
t
= 3
in this
x
vs
t
plot. The answers to parts (b), (c), (d) and (e) correspond to the slopes of
tangent lines (not shown but easily imagined) to the curve at the appropriate points.
17. We use Eq. 22 for average velocity and Eq. 24 for instantaneous velocity, and work
with distances in centimeters and times in seconds.
(a) We plug into the given equation for
x
for
t
= 2.00 s and
t
= 3.00 s and obtain
x
2
=
21.75 cm and
x
3
= 50.25 cm, respectively. The average velocity during the time interval
2.00
≤
t
≤
3.00 s is
v
x
t
avg
cm
cm
s
s
==
−
−
Δ
Δ
50 25
2175
300
This is the end of the preview. Sign up
to
access the rest of the document.
 Spring '06
 Stoler
 Physics, Work

Click to edit the document details