1 hour = 3600 sec

divide 85000(m) by 3600 (sec); you will get the answer as 23.61 m/sec.

(1 km / s) x (1 m / 1000 km)

see how if you wrote this on a piece of paper, the ‘km’ units would cancel out, leaving you with m/s? Generally, that’s what you want to do in most conversion problems.

85 km/h = ________ m/s

here you are converting from an higher qty to a lower qty therefore you multiply. i.e

(85 x 1000)m / (1hr x 60 mins x 60 sec)s = 23.61 m/s

(The 1000 is simply- 1000 m = 1km)

The answer is 23.6 m / s.

Or 85 ÷ 3.6, that will give you 23.611 m/s

Therefor e 85 km/h —–> 23.611 meters / second

Got it???