dy-lan, dyl-an ] The baby girl name Dylan is also used as a boy name, with the latter form being far more popular. It is pronounced D IH L-ahN in English or D AH L-aeN in Welsh â . Dylan's language of origin is Welsh and it is predominantly used in English. The meaning of Dylan is 'sea'. It is derived from dylif meaning 'flood' ; dy ' great ' ; llanw ' flow, tide '. See Dylan for more information. Dylan has 11 forms.
Report Abuse. final velocity = initial velocity + acceleration times time F = ma Solve the second equation for acceleration because you know the force and the mass. Plug that answer into the first equation; you know the initial velocity as well as the time. So you know everything you need to on the right side of the first equation. You should get the answer.
In this case the initial velocity is zero because it is not moving before you drop it. So all you need to do is multiply the acceleration by the five seconds. Now, suppose you were to throw the rock straight downward at 10m/s, and you want to know the instantaneous velocity after 5s. Again you need the product of the acceleration and the time, then add the initial velocity of 10m/s. Most high school physics books will give you the equation like this: vf = vi + at: final velocity (or instantaneous velocity) equals the initial velocity + the product of the acceleration and time.