The final speed of the object is 15.3 m/s
The object in the problem is moving by uniformly accelerated motion (it is in free fall), so we can use the following suvat equation:
v is the final velocity
u is the initial velocity
is the acceleration of gravity (taking downward as positive direction)
s is the vertical displacement
For the object in this problem:
u = 0 (it starts from rest)
s = 12 m is the displacement of the object
Solving for v,
Learn more about free fall motion here:
as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.
okay i have so many questions. but the big one here is: um wt..f is this mess? ?