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Physics 15 Online
OpenStudy (anonymous):

A 30kg ball is launched at an angle of 15 degrees and is moving 20 m/s when it hits the ground. How fast would it be moving when it hits the ground if it were launched at an angle of 35 degrees if we ignore air resistance? Why? (I'd appreciate it if by helping out you would give me the formulas so I can solve it myself, but i'd actually like to know the why part.) Thanks xx

OpenStudy (anonymous):

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