Projectile motion — definition check: time of flight of a projectile The total time taken by a projectile to rise to its maximum height and then return to the ground is called the time of flight. Choose True or False.
Mechanical Engineering
Engineering Mechanics
Difficulty: Easy
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Answer
Correct Answer: True
Explanation
ConceptThe time of flight of a projectile is the total time from launch until it lands back at the original vertical level (ground). It includes the upward journey to maximum height and the downward return.
Standard formula (level ground)Time of flight, T = &frac{2u \sin\alpha}{g}Time to reach maximum height, Tup = &frac{u \sin\alpha}{g}Time to fall back, Tdown = &frac{u \sin\alpha}{g}Thus, T = Tup + Tdown.
Common pitfallDo not confuse time of flight with range (horizontal distance) or with time to reach maximum height (which is half of the time of flight on level ground).
Final AnswerTrue