Body speed in 30 seconds decreased from 35 to 12 m / s. Find acceleration.

Data of the problem: t (time of decreasing the speed of the considered body) = 30 s; V1 (initial speed) = 35 m / s; V2 (final speed of the body) = 12 m / s.

The acceleration of the body in question is calculated by the formula: a = (V2 – V1) / t.

Let’s calculate: a = (12 – 35) / 30 = -0.767 m / s2.

Answer: The body in question was moving with an acceleration of -0.767 m / s2.

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