The initial and final velocities of the body are respectively equal to 2ms and 4ms. How does this body move?

Given:

V0 = 2 meters per second – initial speed of the body;

V1 = 4 meters per second – the final speed of the body.

It is required to determine the nature of body movement.

Let t be the time of body movement.

Then, the acceleration of the body is equal to:

a = (V1 – V) / t = (4 – 2) / t = 2 / t = 2 * t ^ -1 m / s ^ 2.

Since the acceleration a is a positive value (2 * t ^ -1> 0), the body moves uniformly.

Answer: the body moves uniformly with acceleration equal to a = 2 * t ^ -1 m / s ^ 2.