A projectile is right at the edge of a 85 meter tall building . it is then fired with an initial speed of 25m/s at an angle 25 degrees above the horizontal and lands on the ground. Neglecting air resistance.
a. find the horizontal and vertical components of the initial velocity.
b. what is the speed of the projectile when it has fallen 50m? (i.e., at 35m above the ground)?
c. how long will the projectile be in the air?