If you could drive a car straight up into the sky at highway speeds, how long would it take to reach the official boundary of space known as the Karman line?
Correct
The Karman line sits at an altitude of 100 kilometers above sea level. If you were cruising at a steady highway speed of 100 kilometers per hour, you would hit the edge of space in just one hour. The five minute choice is way too speedy unless you are in a rocket, while 24 hours would require you to be driving at a sluggish bicycle pace. Taking a full week would mean you are basically drifting along at a walking speed, which is definitely not going to get you to orbit before you run out of snacks.