Question

A particle moves for 20 seconds with velocity 3 m/s and then velocity 4 m/s for
another 20 seconds and finally moves with velocity 5 m/s for next 20 seconds.
What is the average velocity of the particle​

Answer 1

Total Distance = 20*3+20*4+20*5=240m

Total Time = 60sec

Average Veclocity = 240/60= 4m/s

Thanks!