How well do you get the joke?

One dimensional motion: +x -x Now: +x -x -y +y

https://www.youtube.com/watch?v=xj2L4LbYD7Q

Projectile Motion

Only force is due to gravity Key Concepts: Only force is due to gravity What is a Projectile? Anything that moves (in air) where the only force acting is (due to) gravity. Is a moving football is a projectile? Yes, if you assume Gravity is the only force acting

Key Concepts: think vectors… The instantaneous velocity v is always tangential to the path of the object v vx = x-component of velocity vx vy vy = y-component of velocity v vx vy

Vox = Vx as ax= 0 Key Concepts:  = angle to the ground Vi = Initial Velocity  = angle to the ground Initial Horizontal velocity vox = vo cos 

Voy changes as ay= -g Key Concepts: Initial vertical component of velocity voy = vo sin  Vi  = angle to the ground

2014!

Vertical velocity at maximum height Key Concepts: Learn this diagram Time up = time down (to same height) Vertical velocity at maximum height Vy = 0 m s-1 tair = 2ttop projectile path is a parabola Maximum Height (occurs at half range) Horizontal distance = RANGE