# If an object is dropped, how fast will it be moving after falling #25 m#?

##### 1 Answer

Assuming no air resistance, it will be moving at

#### Explanation:

The expression for how fast an object will be travelling after covering a certain distance while accelerating is:

Where:

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.