The initial velocity of a particle is 10m / s and the acceleration is 2m / s (1) The speed at the end of the fifth second (2) Average velocity displacement in the first five seconds (3) Average velocity displacement in the fifth second

1) At the end of the fifth second, the velocity V5 = VO + at5 = 10 + 2 * 5 = 20m / S (2) the average velocity displacement V5 = (V0 + V5) / 2 = (10 + 20) / 2 = 15m / s, S5 = V5 * T5 = 15 * 5 = 75m (3) the average velocity displacement V4 = VO + at4 = 10 + 3 * 4 = 18m / s, V5 '= (V0 + V5) / 2 = 19m / SS5' = V5

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