Arun
Last Activity: 6 Years ago
Well keep in mind that
distance= rate*time
so time=distance/rate and rate= distance/time.
Also Average velocity= distance total moved divided by time that passed (time it took to move that distance)
With this information we can begin
a)
1.22m/s=r
73.2m=d
t=?
we can solve with t=d/r and get
t =73.2/1.22 and we get t=60sec.
Doing the same for
3.05 = r
73.2 = d
t =?
t = 73.2m/3.05m/s= 24secs.
Using the average velocity information we know we went
73.2m+73.2m in distance
60 seconds+24 seconds in time so
146.4m/84secs.= 1.74m/s
b) We need to find distance now using the previous formulas we can solve
d = r*t
d = 1.22m/s*60sec
d = 73.2m
and for the other
d=3.05m/s*60s
d=183m
so same situation with average velocity
256.2m/120secs= 2.135 m/s