Question

The acceleration time graph of a particle moving along straight line is as shown in the figure. What is the velocity of the particle at t=8 sec, if initial velocity of particle is 3 m/s?​

Answer 1

Answer:

4 m/s

Velocity= area of acceleration - time graph

⇒Velocity=

2

1

×2×4=4m/s

Answer 2

Answer:

7m/s

Explanation:

change in velocity = area of acceleration time graph

∆v = area of triangle - area of rectangle

= 1/2 × 4 × 4 - 4 × 1

= 4m/s

final velocity - 3 = 4

final velocity= 7m/s