Free Fall: Distance, speed and time for an object dropped under gravity. This free calculator solves for Distance, velocity, time, gravity and shows every step.
Free fall is the special case of constant-acceleration motion with zero initial velocity and gravity as the only force (air resistance ignored). Like projectile motion, the result is independent of mass. Switching the gravity preset shows how the same drop plays out on the Moon (1.62 m/s²) versus Jupiter (24.79 m/s²).
Drop from h = 45 m on Earth. t = √(2·45 / 9.81) = 3.03 s; v = 9.81·3.03 = 29.7 m/s.
Drop-tower rides, measuring g with a falling object, reaction-time rulers, and as the gateway concept to terminal velocity.
Free Fall uses the formula h = ½·g·t² · v = g·t. Distance, speed and time for an object dropped under gravity.
Choose which variable to solve for, enter the values you know (in any supported unit), and the calculator substitutes them into h = ½·g·t² · v = g·t and shows every step of the working. It can solve for Distance, velocity, time, gravity.
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