A web page designer creates an computer animation in which a period on a computer system screen has a place of $\vecr=<4.0 \mathrmcm+$ $\left(2.5 \mathrmcm / \mathrms^2\right) t^2 > \hat\boldsymbol\imath+(5.0 \mathrmcm / \mathrms) t \hat\boldsymbolJ$ (a) discover the magnitude and also direction the the dot's average velocity in between $t=0$ and $t=2.0 \mathrms .$ (b) find the magnitude and direction the the instantaneous velocity in ~ $t=0, t=1.0 \mathrms,$ and also $t=2.0 \mathrms .$ (c) sketch the dot's trajectory native $t=0$ to $t=2.0 \mathrms,$ and also show the velocitiescalculated in part (b).

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