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The position of a particle is given by ...

The position of a particle is given by
`r=3.0that(i) + 2.0t^(2)hat(j)+5.0hat(k)`
Where t is in seconds and the coefficients have the proper units for r to be in meteres. A) Find v(t) nad a(t) of the particle. B) Find the magnitude and direction of v(t) at t=1.0s

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