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The horizontal range is greatest when the launch angle is:

A45 degrees
B55 degrees
C65 degrees
D75 degrees
Answer & Solution
Correct answer: A. 45 degrees
1. The range depends on the sine of twice the angle. 2. That is maximum when the angle is 45 degrees. 3. So the correct answer is 45 degrees. _Source: syllabus Physics Part I, Ch 4 'Motion in a Plane'_
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