Question

4. A particle travels with a speed of 18 km/hr, its speed in m/s is
(a) 5 m/s (b) 50 m/s (C) 64.8 m/s (d) 6.48 m/s​

Answer 1

a. 5m/s is your answer.

Answer 2

Answer:

5 m/s

Explanation:

According to the given question,

speed = 18 km/h

And we know,

• 1 km = 1000 m

• 1 h = 3600 s

Thus,

• speed = 18 km/h

• speed = 18×1000/3600

• speed = 5 m/s

Thus speed will be 5 m/s ans.