Physics

To solve this, we'll use the principle of conservation of momentum. In a perfectly inelastic collision, the two objects stick together after the collision, so their final velocity is the same.

 

Given:

Mass of the first ball

Velocity of the first ball

Mass of the second ball

Velocity of the second ball (negative because it's moving in the opposite direction)

 

Formula:

The formula for momentum conservation is:

 

Substitute the known values:

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