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Why do projectiles thrown at 30 and 60 degrees have the same range and 45 degrees has the largest range?

Sagot :

because the force pulling the projectile downward is equal. so since 60 deg is the same as 30 deg the same as 20 deg is equal to 70 deg. it would only vary on the distance.
since 45 deg is the mid point, its the angle that would give the longest range