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The deceleration of the oil tanker sailing at 8 m/s is -0.0106 m/s².What is deceleration?Deceleration can be defined as the negative form of acceleration.To calculate the deceleration of the oil tanker, we use the formula below.Formula:v² = u²+2as......... Equation 1Where:v = Final velocityu = Initial velocitya = deceleration s = DistanceFrom the question,Given:v = 0 m/su = 8 m/ss = 3 km = 3000 mSubstitute these values into equation 10² = 8²+(2×3000a)0 = 64+6000aa = -64/6000a = -0.0106 m/s²Hence, the deceleration of the oil tanker is -0.0106 m/s².Learn more about deceleration here: https://brainly.com/question/25311290#SPJ1