Answer :
Average speed= Distance/Time=15/0.5=30km/h
Speed in km/h=30km/h
Speed in m/s=30*5/18=8.33m/s
Speed in km/h=30km/h
Speed in m/s=30*5/18=8.33m/s
average speed =total distance/total time=15/0.5=30km/hr
in m/s=30*5/18=8.33m/s