Question

A tennis ball travels at speed of 120 miles per hour.convert this rate to feet per second

Answer 1

`120(mile)/(hour)\\\\ 1 \ mile=5280\ feet\\ 1\ hour=3600\ seconds\\\\ 120(mile)/(hour)=120*(5280)/(3600)=(120*5280)/(3600)=(633600)/(3600)=176(feet)/(second)\\\\ \boxed{120(mile)/(hour)=176(feet)/(second)}`