Answer :
70 mph
= 70 * 1600 m/h
= 112000 m/h
-> 112000 m/h
= 112000 /3600 m/s
= 31.111... m/s
= 31 m/s (2s.f)
= 70 * 1600 m/h
= 112000 m/h
-> 112000 m/h
= 112000 /3600 m/s
= 31.111... m/s
= 31 m/s (2s.f)