Question

The velocity time graph implies that the body
a) moves with constant velocityb) has an initial velocity and uniformly decelerated to attain restc) starts from rest and has a uniform accelerationd) has an initial velocity and non uniform acceleration

Answer 1

We want to determine the average velocity of a body moving with constant velocity.

Let the body move at a constant velocity of magnitude v for a time t.

⇒ The total distance covered in time t is vt.

The average velocity is the total distance covered divided by total time taken.

⇒ The average velocity is vtt=v.

⇒ If a body is moving with a constant velocity, the average velocity is the same as the constant velocity.