Motion in A Plane

Question: Neglecting the air resistance, the time of flight of a projectile is determined by



1) ${U_{vertical}}$
2) ${U_{horizontal}}$
3) $U = {U^2}_{vertical} + {U^2}_{horizontal}$
4) $U = U\,{({U^2}_{vertical} + {U^2}_{horizontal})^{1/2}}$
Solution: Explanation: Explanation
oblique-projectile-motion

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