Question 160404
Basically, it is IMPOSSIBLE.
.
You will be applying the "distance" formula:
d = rt
where
d is distance
r is rate or speed
t is time
.
In order to average 60 mph over 2 miles, the "time" needed to do this is:
d = rt
t = d/r
t = 2/60 = 1/30 hour
.
The time the car took in the first mile (doing 30 mph) is:
d = rt
t = d/r
t = 1/30 = 1/30 hour
.
Notice, there is NO time left to compensate on the second mile.
.
Conclusion:
Since, the car already consumed ALL the time, no matter how fast he goes in the second mile he cannot achieve the AVERAGE rate of 60 mph.