Collision (Two Types) Elastic Collision 1)Momentum Conserved (Law od Conservation of Momentum) 2)Energy Conserved (Law od Conservation of energy) Inelastic Collision 1)Momentum Conserved (Law od Conservation of Momentum) Collision 1D (Head On) All motions are on a line Collision 2D Motions are in 2D(a plane) Break the momentum to x and y components Momentum is conserved separately on x and y components. 1D problem 2D Problem Problem Combining Hooke’s law and Collision