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.
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