A bowler throws a cricket ball at a speed of 120 km/h. How long does this ball take to travel a distance of 20 metres to reach the batsman?
The speed of the cricket ball = 120km/h
⇒ 
m/min
⇒ 2× 1000
⇒2000 m/min
Now, speed in m/s = 
So, 20m can be cover in 
99