For which pair of angles, where ranges for a projectile are equal. (Initial velocity is kept constant)
Answer: 10°, 80°
Explanation
For projectile motion, two complementary angles θ and 90° - θ give the same range if the initial velocity is constant.
Since 10° + 80° = 90°, the angles 10° and 80° are complementary and will have equal ranges.
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