Bob the Builder is making a delivery of wood in his work truck. He is traveling at the velocity of 12 mi/hour at the top of the hill. Nine seconds later he reaches the bottom of the hill and is moving north at 25 mi/hour. What is the acceleration?

Acceleration, a = 0.65m/s² due North.

Explanation:

Given the following data;

Initial velocity = 12mi/hr

Final velocity = 25mi/hr

Time = 9 secs

To find the acceleration;

First of all, we would convert miles per hour to meters per seconds.

Now to find the acceleration;

Mathematically, acceleration is given by the equation;

Substituting into the equation, we have;

Acceleration, a = 0.65m/s² due North.

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explanation:

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