how many seconds does it take to go 350 meters at 65kmhrSolu

how many seconds does it take to go 350 meters at 65km/hr?

Solution

65 km/hr = 65000 m/hr
1 hr = 3600 seconds
65 kph = 65000/3600 m/sec = 325/18 m/sec
d = rt
t = d/r = 350 meters/(325/18) m/sec
t = 350*18/325 seconds = 6300/325 seconds
t = 252/13 seconds
t =~19.38 seconds