Distance Find! Help?

Question

http://www.webassign.net/giancoli5/2_27.gif

(a) In Fig. 2-27, a graph of velocity vs. time, estimate the distance the object traveled during the first minute.
[ m ] ?
(b) What is the distance traveled during the second minute?
[ m ] ?

Answer 1

The average velocity in the first 30 seconds is
15+(30-15)/2 or 22.5 m/s
in 30 seconds the distance is
675 meters

The average speed over the the second 30 seconds is about 37 m/s
the distance is
1110 meter

first minute is
1785 meters

The next 30 seconds has an average v of about 12
the distance is
360 meter

There is zero v for 18 seconds.
The last 12 seconds, average v is 6 m/s
72 meters

second minute is
432 m

total distance is 2217 meters

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