Question

a car moves with a speed of 30km per hour -1 for half an hour 25 km per hour -1 for one hour and 40km per hour -1 for two hours calculate the average speed of car
​

Answer 1

:Answer:

20.

U = 20km/h

V = 60km/h

T = 6 sec

a = V-U/ T

= 60-20/6

= 40/6

a = 6.66