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1. Two seconds after being projected from ground level (y=0 m), a projectile is displaced

x=40 m horizontally and y=53 m vertically above its launch point. What are the (a) horizontal

and (b) vertical components of the initial velocity v of the projectile? (c) At the instant the

projectile achieves its maximum height above ground level, how far is it displaced horizontally

from the launch point?

## Homework Equations

## The Attempt at a Solution

I am working on part a). I was able to determine the horizontal component; however, I am unable to ascertain the vertical component of velocity. I tried applying kinematic equations, but with no avail. I tried to employ a symmetry argument, by finding the velocity acquired as the projectile falls to earth from a vertical distance of 53 m, but then I realized that I don't know the velocity at this point, nor can I suppose that the speed is zero, because it isn't.

What should I do?