Question

Acceleration versus time graph for a body moving along a
straight line is shown in figure. If velocity of particle is 5
ms- at t = 0 then velocity at t = 8 second is
ams)
luo
30 ms -1
25 ms-1
20 ms -1
5 ms -1​

Answer 1

Answer:

Area of acceleration v/s time graph represents change in velocity.....

So,

1/2 x 3 x 5 +2 x 5 + 1/2 x 3 x 5 = Vf - 5

15/2 +10 + 15/2= Vf - 5

25 +5 = Vf

Vf = 30