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Q. An artillery shell is fired with an initial velocity of 300 m/s at 47.5° above the horizontal. To clear an avalanche, it explodes on a mountainside 47 s after firing. What is the x and y components of the shell where it explodes, relative to its firing point?

Q. A 93kg water skier floating in a lake is pulled from rest to a speed of 11 m/s in a distance of 27 m.

What is the net force exerted on the skier, assuming his acceleration is constant?

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Category:- Physics
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