Assertion: Circular and projectile motions are both two-dimensional motions

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

Assertion: Circular and projectile motions are both two-dimensional motions. However, in circular motion, we cannot apply

\mathbf{v}=\mathbf{u}+\mathbf{a}t

directly, whereas in projectile motion we can. Reason: Projectile motion takes place under gravity, while gravity has no role in circular motion.