Speed of 90 km/h when expressed in m/s is _____.

Speed of 90 km/h when expressed in m/s is _____.

1. 1. 9000 m/s
   2. 90 m/s
   3. 25 m/s
   4. 20 m/s

Answer: 3. 25 m/s

Explanation:

We know that,

• 1 km = 1000 m
• 1 hour =3600

Now converting km/h into m/s, we get

90 km/h = 90 km/h x 5/18 = 25m/s.