Question

if a sports car can go from 0 to 60 mph in 3.8 seconds, what would be it's final speed after 6 seconds if it's starting speed was 30.0 mph?

Answer 1

Verrrrrry interesting !

Acceleration = (change in speed) / (time for the change)

The car's acceleration is (60 mph) / (3.8 sec) = (60/3.8) mile/hr-sec .

Final speed = (original speed) + (acceleration · time)

= (30 mi/hr) + (60/3.8 mi/hr-sec)·(6 sec)

= (30)mi/hr + (360 / 3.8)mi/hr

= 124.7 mph .