Question

a car covers a distance of 5 km in 20 min. find the net velocity of the car in (a) km/min(b) m/s(c) m/min(d) km/h

Answer 1

Distance cover by the car=5km
Total time taken to cover the distance=20min
speed of car= Distance travelled/Time taken
v= 5/20km/min
v=1/4km/min=0.25km/min
into m/S
S=5km=5*1000m
S=5000m
t=20min= 20*60sec=1200sec
v=S/t=5000/1200m/sec
v=25/6m/sec=4.16m/sec
Into m/min
S=5000m
t=20min
v=S/t=5000/20m/min
v=250m/min
into km/hr
S=5km
t=20/60hr=1/3hr
v=S/t=5/1/3km/hr
v=15km/hr