convert 55 miles per hour to meters/second (m/s)

Question

Given 1 mi = 1.61*10³ m, 1 day = 24 hours, 1 hour = 60 min, 1 min = 60 sec, and 1 year = 365 days

Answer 1

Carole,

 

I used dimensional analysis for this.

 

55mi x   1hr    x   1min  x 1.61*10³m = 24.6m/s

1 hr     60min      60sec        1mi

 

I hope this helps