A body travels 200 cm in the first two seconds and 220 cm in the next four seconds. The average speed of the body will be
0.7 m/s
Total distance travelled = 200+220 =420 cm = 4.2 m
Total time taken= 2 + 4 = 6 sec
Average speed = total distance travelledtotal time=4.26=0.7m/s