Help me please, and if you can explain

Explanation:

If you knew the volume of water and the bucket or where water is then when you fully submerge the toy you measure how the water has risen and from that you have the toy volume.

answer: 0

explanation: im   14

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be