alleryStart learning →The key to analysing projectile motion is to resolve it into motions along:
ACircular directions
BRandom directions
CPerpendicular lines
DParallel directions
Answer & Solution
Correct answer: C. Perpendicular lines
1. A curved path is hard to handle as a single motion.
2. The key to analyzing such motion, called projectile motion, is to resolve it into motions along perpendicular directions.
3. Those directions are conventionally horizontal and vertical.
4. Each of them can then be treated with the one-dimensional equations.
_Source: OpenStax College Physics for AP(R) Courses 2e (CC BY 4.0), Ch 3 'Two-Dimensional Kinematics', sections 3.1-3.4_
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