a greyhound is capable of running at 40 mph, how many meters could the greyhound run in 3 minutes at this speed, how many seconds would it take the greyhound to run 1 km at this speed
In the Google search engine input:
40 mph = km/h
You will find 64.3738 km/h
which is
62373.8 meters/h
which is
62373.8 meters/h (1 h/60 min) in meters/min
times 3 for 3 minutes
64.3738 km/h * 1 h/3600 s) * t = 1 km
so
t = 3600/64.3738 seconds