2 Problems that I am unable to solve: 1.) projectile launched at an angle 35 degrees, just clears a wall 20m high at a distance of 130m from launch. Solve for initial velocity, time it takes the projectile to reach the wall, and the velocity components + speed of the projectile when it reaches the wall.
Given: Delta X (to wall) = 130m
Theta = 35 degrees
G = -9.81m/s^2
2.) a projectile is launched at an angle of 34 degrees and travels a total distance of 230m. Solve for initial velocity and maximum height reached by projectile.
Given: Delta X = 230m
Theta = 34 degrees
Vf = 0 m/s
Vx=Vi(cosine of theta) = constant
Delta X= Vi(cosine of theta)(Delta T)
Vy,f=Vi(sin of theta) - G(Delta T)
Vy,f^2 = Vi^2 (sin of theta)^2 - 2G(Delta Y)
Delta Y= Vi(sin theta)(Delta T) - 1/2G(Delta T)^2
The Attempt at a Solution
N/A; All of the equations listed call for information that is not provided ie: there are always at least two variables in the equations.