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an artillery shell is fired with inital velocity of 300m/s at 55 angle above the horizontal. to clear an avalanche, it explodes on a mountainside...

an artillery shell is fired with inital velocity of 300m/s at 55 angle above the horizontal. to clear an avalanche, it explodes on a mountainside 42.0s after firing. What are the x and y coordinates of the shell where it explodes, relative to its firing point??

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