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A rocket-powered sled moves along a track, eventually reaching a top speed of 171 m/s to...

A rocket-powered sled moves along a track, eventually reaching a top speed of 171 m/s to the west. It then begins to slow down, reaching a complete stop after slowing down for 3.91 s. What was the sled s average acceleration and velocity during the slowdown phase?

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Answer #1

Use the definition of average acceleration to find the value of average acceleration and use equation of kinematics considering acceleration to be constant throughout the motion to find the displacement and use the displacement to find the average velocity as shown below

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