Question #978b1

Question

797 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-01-26T01:34:30

80 m/s = 179 mph

1 mile = 1609.34 m
1 hour = 3600 s

#(1 "mile")/("hr")=(1609.34 m)/(3600 s)=0.447m/s#

so

#1 m/s = 1/0.447mph = 2.237 mph#

so now we just need to find for 80 m/s:

#80 m/s = 80* 2.237 mph#

#80 m/s = 179 mph#

It's a lot tidier in in metric :-)