Answer this riddle bob the builder is not smart but builds a house how is that if he is not smart?

bob the builder is god, he doesnt need smarts to build a house

insects!

explanation:

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