alleryFor a fixed launch speed, range is greatest at a launch angle of:
A60 degrees
B90 degrees
C45 degrees
D30 degrees
Answer & Solution
Correct answer: C. 45 degrees
1. Range depends on the sine of twice the angle.
2. That sine is largest when twice the angle is 90.
3. So the best angle is 45 degrees.
_Source: syllabus Physics Part I, Chapter 4, Motion in a Plane._
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