AVIATION & AERONAUTIC CALCULATOR
Freefall Time
A precise tool.
What is the Freefall Time & How does it work?
Freefall time is the duration an object falls under the influence of gravity without any other forces acting upon it, such as air resistance. The freefall time can be calculated using the formula for uniformly accelerated motion.
t = sqrt{frac{2h}{g}}
t = freefall time, h = height, g = acceleration due to gravity (approximately 9.81 m/s² on Earth)
This formula assumes that the object starts from rest and falls vertically downward in a vacuum.
Parameters
Result
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Frequently Asked Questions
How do I calculate freefall time?
Use the formula t = sqrt(2h/g), where h is the height and g is the acceleration due to gravity (9.81 m/s² on Earth).
What does freefall time depend on?
Freefall time depends on the height from which the object falls and the acceleration due to gravity.
Is air resistance considered in this calculation?
No, this formula assumes a vacuum with no air resistance.
How can I modify the formula for different planets?
Replace g with the acceleration due to gravity of the planet you are considering.
What is the unit for freefall time?
The unit for freefall time is seconds (s).
Can I use this formula for horizontal motion?
No, this formula is only valid for vertical motion under gravity.
What is the significance of starting from rest in this calculation?
Starting from rest simplifies the calculation by assuming initial velocity is zero.
Results are for informational purposes only and do not constitute professional advice.