Qube
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Homework Statement
The position of an object traveling in a straight line at time t is given by s(t) = (2/3)t^2 + 4t^2 + 6t + 2.
What's the displacement after 3 seconds?
Homework Equations
Displacement is final position minus initial position.
The Attempt at a Solution
Displacement at 3 seconds is s(3) - s(0).
s(0) = 2. Note the constant term!
s(3) = 18 - 36 + 18 + 2.
s(3) - s(0) = 0.
Interestingly enough, my key claims displacement is simply s(3).
I'm guessing this is an error (and not on my part)!
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