A child travels down a water slide, leaving it with a velocity of 4.2 m/s horizontally, and then landing in a swimming pool 3.2 m below the slide.

A child travels down a water slide, leaving it with a velocity of 4.2 m/s horizontally, and then landing in a swimming pool 3.2 m below the slide.

How long does it take the child to hit the water?

What is the child's horizontal displacement while in the air?