The position of an object moving along
x
-axis is given by
x =
a + bt2
where
a = 8.5 m,
b = 2.5 ms–2 and
t is measured in seconds. What is its velocity at
t = 0 s and
t = 2.0 s. What is the average velocity
between
t = 2.0 s and
t = 4.0 s ?
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