Question

The acceleration time graph for a moving body is as shown in figure. The change in velocity of body from t=0 to t= 4

Answer 1

Explanation:

Given : V

i

=2m/s at t=0 s

Let V

f

be the velocity of the particle at t=4 s

Area under the a-t graph gives the change in velocity of the particle during that period.

∴ ΔV=V

f

−V

i

=

2

1

×4×4=8

OR V

f

−2=8 ⟹V

f

=10m/s