A projectile is shot from the edge of a cliff 125 m above the ground level with an initial speed of 65.0 m/s at an angle of 37 degree above th horizontal.

A) find the position vector of the projectile when it reaches it maximum height above the top of th cliff. Express the answer in unit vector notation.

B) find the magnitude and direction angle of the projectile's velocity at the moment it reaches the ground at the bottom of the cliff.