Question

4.) A car moves with a speed of 40 km/h for 10 minutes and then 60 km/h for 20 minutes.
What will be the total distance covered by the car after 30 .​

Answer 1

Answer:

i am taking the 30 as min.

then 30*60=1800sec

converting 40 km/h in m/sec we get

40*5/18=11.11 m/sec

speed = distance/ time

in 10 min. he has covered 11.11*10*60= 6666.66 m

similarly in 20 min

60*5/18*60*20= 20,000 m

add them you will get the answer in meters