Question

a ball is thrown upward with an initial velocity. What is it's velocity to halfway to its highest point?

the answer is the square root of 2, but how do u get that answer?

Answer 1

The answer is NOT the square root 2. It is the initial velocity Vo divided by the square root of two. Think of the law of conservation of energy and you should be able to see why. The kinetic energy is reduced by half, because it is half way to its maximum height, where the kinetic energy is zero.

Answer 2

o ok....now it makes sense