Free Fall Calculator (Distance and Speed from Time)
Find free fall distance and speed from the fall time. With initial speed zero and gravity g=9.80665 m/s squared, it gives distance, speed in m/s and km/h, and kinetic energy per mass.
Last updated:
Input
Compute the fall distance and speed from the fall time, for an object dropped from rest. Air resistance is ignored.
s
Enter the elapsed time in seconds since the object started to fall.
Gravity acceleration is g = 9.80665 m/s squared.
Result
Fall distance
44.129925m
Fall speed
29.41995 m/s
Speed in km/h
105.91182 km/h
Kinetic energy per mass
432.766729 J/kg
Fall distance d = (1/2) g t squared, fall speed v = g t. Here g is the gravity acceleration 9.80665 m/s squared and t is the fall time.
How it works
- Fall distance is d = (1/2) g t squared, where t is the fall time in seconds and g is the gravity acceleration.
- Fall speed is v = g t. Multiply by 3.6 to convert m/s into km/h.
- The gravity acceleration uses standard gravity g = 9.80665 m/s squared.
- This assumes the object starts from rest with no air resistance. Real values are smaller because of drag.
- Kinetic energy per unit mass is shown as (1/2) v squared in J/kg.
Reviews
Tell us what you think of this calculator.
Write a review
Found an incorrect result or a problem? Turn this on to report it.
Rating