Question

A body travels towards north with 2m/s for 20 sec and then moves towards east with
velocity 3m/s for 10sec. Its average velocity is

Answer 1

As we go 40m in20sec then 30m in 10sec

As 40+30=70

In 40sec

ans is 1.75m/s

Answer 2

Answer 5/3m/s

Explanation:

Total Displacement=√(2×20)2+(3×10)2 =50m/s

Total Time=20+10=30s

Average velocity= total displacement /total time

50/30=5/3m/s