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Suppose that the position vector of a particle is given by the following function of time:...

Suppose that the position vector of a particle is given by the
following function of time:
r = (6.0 + 2.0t^2)i + (3.0 - 2.0t + 3.0t^2)j
where distance is measured in meters and time in seconds.
(a) What is the instantaneous velocity vector at t=2.0 s?
What is the magnitude of this vector?
(b) What is the instantaneous acceleration vector? What are
the magnitude and direction of this vector?

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Answer #1

At t= 2,81 C ma gmitzo

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