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An artillery shell is red with an initial velocity of 328 m/s at 51.1 degrees above the horizontal. To clear an avalanche, it explodes on a mountainside 42.1 s after firing. What are the (a) x and (b) y coordinates of the shell where it explodes, relative to its firing point? What are the (c) x and (d) y components of its velocity just before it hits the mountainside? Be sure to include the correct sign on the answers.

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