Step1: Find the speed of car
Given: A racing car covers 600 km in 3 hours and 20 minutes.
We need to calculate the speed in meters per second.
Distance =600 km
=600×1000m
=600000 m
Time =3 hours 20 minutes
=3 ℎours +20 minutes
=3×60 minutes +20 minutes
[1 ℎour=60 min]
=180 min+20 mins
=200 mins
=200×60 sec [1min=60 sec]
=12000 sec
∵Speed=distanceTime
=600000m12000sec
=50m/s
Step2: Calculate distance covered in 50 second
Time =50 sec
Speed =50 m/sec
Speed =DistanceTime
50 m/s=distance50
Distance =50×50
=2500 m
Hence, the distance covered by a car in 50 second is 2500 m or 2.5 km.