If an object is dropped, how fast will it be moving after falling #25 m#?
Assuming no air resistance, it will be moving at
The expression for how fast an object will be travelling after covering a certain distance while accelerating is:
In this case, we assume that the initial velocity is
We can leave out the
Substituting in our values, including the acceleration due to gravity:
We have assumed that there is no air resistance acting, or that we can neglect it because it is much smaller than the gravitational force.