A projectile is launched from the ground with a... - SS2 Physics Mechanics - Motion in a Plane Question
A projectile is launched from the ground with an initial velocity of 30 m/s at an angle of 60 degrees above the horizontal. What is the time of flight of the projectile?
A
3 s
B
4 s
C
5 s
D
6 s
correct option: c
Explanation: The time of flight of a projectile is the total time taken for the projectile to reach the ground. The time of flight can be calculated using the formula:
Time of flight = (2 x initial velocity x sin(angle)) / acceleration due to gravity
Time of flight = (2 x 30 m/s x sin(60°)) / 9.8 m/s2 ≈ (2 x 30 x 0.866) / 9.8 ≈ 5.02 s ≈ 5 s
Therefore, the time of flight of the projectile is approximately 5 seconds.
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