Simple math question related to physics ?

Question

why is the horiztontal projectile calculated as v^2sin(2@)/g? where does the sin(2@) come from? i need to know!!! i dont know what sin2@ looks geometrically

Answer 1

This is the third time I answered this question!!!!

projectiles follow parabolic paths, not sine waves! I don't know where you got those equation, but they have nothing to do with projectile motion.

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