You can't find the velocity of an object that has fallen 10m just from the distance. You need more information, specifically the initial velocity of the object.

Here's why:

* Free Fall: When an object falls, it accelerates due to gravity. This means its velocity increases as it falls.

* Initial Velocity Matters: If the object was dropped from rest, it will have a different final velocity than if it was thrown downwards with some initial speed.

Here's how to find the final velocity using different scenarios:

1. Object dropped from rest:

* Formula: v² = u² + 2as

* v = final velocity (what we want to find)

* u = initial velocity (0 m/s in this case)

* a = acceleration due to gravity (approximately 9.8 m/s²)

* s = distance fallen (10 m)

* Calculation:

* v² = 0² + 2 * 9.8 * 10

* v² = 196

* v = √196 = 14 m/s

2. Object thrown downwards with an initial velocity:

* Formula: Same as above (v² = u² + 2as)

* Calculation: You would need to know the initial velocity (u) in this case.

In summary: To find the velocity of an object after falling 10m, you need to know if it started from rest or had an initial downward velocity.