Answer to Question #293369 in Physics for Thalia

Question

Dean is slowing down on his skateboards. He starts at a speed of 5.5 m/s and

slows to 1.0 m/s over a time of 3.0 seconds. What is Dean's acceleration?

Answer 1

The acceleration is the change in speed, or

$$a=(5.5-1)/3=1.5\text{ m/s}^2.$$