Question

A car covers 120 km in 3 hours calculate its speed in m/s​

Answer 1

Solution :—

120 km = 120 x 1,000 = 120,000 m

3 hours 3 x 60 x 60 = 3600

3600 x 3 = 10,800 s

speed = $\frac{120,000}{10,800}$

$=\frac{1200}{108}$

$= 11.1 m/s$

Answer 2

Answer:

11.1 m/s

Explanation:

120 km = 120 x 1,000 = 120,000 m

3 hours = 3 x 60 x 60 = 3600 x 3 = 10,800 s

speed = 120,000 / 10,800

= 1200/108

= 11.1 m/s