John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?

5.5 m/s

Explanation:

Assuming the bottle is initially stationary, we can write the law of conservation of momentum as follows:

where

is the mass of the ball

is the initial velocity of the ball

is the mass of the bottle

is the final velocity of the bottle

is the final velocity of the ball

Solving for ,

answera compound;