Question

A ball is shot into space at 150 feet per second. How man miles per hour is that?
Background knowledge: 1 mile = 5280 feet

Answer 1

*How many miles per hour is that?

Answer 2

So, how many seconds there are in a hour? Ans: 60min*60sec=3600 seconds.
Next, since it is 150 ft/s, it goes to: 150*3600 = 540000ft/hr,

Then convert ft to miles: 540000/5280 = 102.3 mph.

Answer 3

Thank you!~