(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

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

2. Relevant equations

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

3. 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.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Projectiles launched at an angle, neglecting air resistance

**Physics Forums | Science Articles, Homework Help, Discussion**