- #1

2k8bomb

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Problem:

A bike rider accelerates constantly to a velocity of 7.5 m/s during 4.5 s. The bike's displacement is +19 m. What was the initial velocity of the bike?

The textbook says the answer is 0.94 m/s, but I got 0.9 m/s. I've attached an image showing the steps I took to get to my answer...where did I go wrong?