An object is dropped from an airplane and takes 72 seconds to hit the ground. What is the magnitude of its VF Y ?
1 answer:
The final vertical velocity of the object is 705.6 m
Explanation:
Here we have to analyze the vertical motion of the object, which is a free fall motion, with constant acceleration of
towards the ground due to gravity.
Therefore, we can use the following suvat equation:
where
v is the final vertical velocity
u is the initial vertical velocity
is the acceleration
t is the time
Since the object is dropped,
u = 0
Therefore, the magnitude of the vertical velocity of the object after t = 72 seconds is:
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Answer:
255 Hz
Explanation:
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Sounded with the 250 Hz tuning fork,
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