so pababa ako kanina sa hagdanan namin na 19.7cm length and 25.4 cm wide para kumain ng bigla kong matwist ang aking astragalus, also known as the articulation of one of the tarsal bones kaya nahulog ako ng 0.028 m/s^2 since i am in surface of the earth, the acceleration is g = 32.2 feet/sec2 or 9.8 meter/ sec2. integrating the acceleration once gives V = Vo + g T where Vo is the initial velocity, presumably zero, and T is the time of fall.