What is the difference between a low tide and a high tide

High water level during a tide is called High tide.

Low water level during a tide is called Low tide.

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

the components of a vector are the parts of the vectors that are to each other.

b perpendicular