Answer:
a.the car is traveling at the speed of 126 km/h
b.the car will cover 630 km in 5 hours
Step-by-step explanation:
first of all we will convert meter in kilometer and second in hour
1 m = (1/1000) km
1s = (1/3600) h
35m/s = 30m/s *(1/1000)km/m *(3600)s/h
now we will cancel the units
35m/s = 35 *(1/1000)km *(3600)/h
= 0.035 * 3600
= 126km/h
