The speed of a car is 90kmph. What is the speed in metres per second.
Choose the correct option:  A) 25 m/s  B) 40 m/s  C) 35 m/s  D) 28 m/s  E) 27 m/s
Explanation:   km/hr to m/sec conversion:   x km/hr = (x × 5/18) m/sec   90 × 5/18 = 25.   25 m/snswer: Option 25 m/s
<result>A</result>
The speed of a car is 90kmph. What is the speed in metres per second.