Question

Traffic is moving at 30 mph on a street you plan to cross. How big of a gap n traffic should you have in each direction in order to cross the street? A) 50 feet B) Two-thirds of a block. C) One-half mile?

Answer 1

I admit I completely invented this one but it intrigued me...

Explanation:

I considered that `30"mph"` corresponds to `44"ft/s"`

so that your car moving at this speed will travel the distance of `50 "ft"` in:

`50/44=1.1s`

considering this person very fit and...maybe to be Usain Bolt probably he can run `100m=328"ft"` in `10 "seconds"`

or `328/10=32.8"ft"` each second....

and in `1.1s` he will cover: `32.8*1.1=36.1"ft"`

Considering:

...`50"ft"` in each direction should be ok...