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1. Two projectiles are thrown in the air with the same initial speed. One was launched at 20° while the other one was launched at 70°. Both projectiles landed at the same point. Did they stay in the air for the same amount of time? Explain your answer.

2. Two materials of identical mass were thrown at the same angle. Will they land at the same point? Justify your answer.

3. Why do you think projectiles have parabolic trajectory? Explain your answer.







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