physics
posted by johnny .
An electron has a constant acceleration of 2.0 m/s2. At a certain instant its velocity is 10.9 m/s.
(a) What was its velocity 2.5 s earlier?
m/s
(b) What is its velocity 2.5 s later?
m/s

Use the acceleration, which you know. These are not hard questions. Show us your work if you need further help.
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