Physics

To solve this, we'll use the principle of conservation of momentum. Since the collision is inelastic, the two balls stick together after the collision.

 

The formula for momentum conservation is:

 

Where:

(mass of the first ball)

(velocity of the first ball)

(mass of the second ball)

(velocity of the second ball, negative because it is moving in the opposite direction)

is the final velocity of the combined system after the collision.

 

Now, substitute the known values into the equation:

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