3.4. Projectile Motion Problem Solving http://www.ck12.org
3.4 Projectile Motion Problem Solving
- Use the equations of motion in two dimensions in order to solve projectile motion problems.
Students will learn how to use the equations of motion in two dimensions in order to solve problems for projectiles.
It is necessary to understand how to break a vector into its x and y components.
Key Equations
Break the Initial Velocity Vector into its Components
Apply the Kinematics Equations
Vertical Direction Horizontal Direction
y(t) =yi+viyt−^12 gt^2 x(t) =xi+vixt
vy(t) =viy−gt vx(t) =vix
vy^2 =v 0 y^2 − 2 g(∆y)
ay=−g=− 9 .8m/s^2 ≈−10m/s^2 ax= 0