The magnitude of the velocity of a projectile when it is at its maximum height above ground level is 10 m/s.

(a) What is the magnitude of the velocity of the projectile 1.0 s before it achieves its maximum height?

(b) What is the magnitude of the velocity of the projectile 1.0 s after it achieves its maximum height? If we take x = 0 and y = 0 to be at the point of maximum height and positive x to be in the direction of the velocity there, what are the

(c) x coordinate and

(d) y coordinate of the projectile 1.0 s before it reaches its maximum height and the

(e) x coordinate and

(f) y coordinate 1.0 s after it reaches its maximum height?