A ball of mass m₁ = 2.7 kg moving horizontally right with a speed of 4.5 m/s collides head-on with a second ball of mass m₂ = 0.27 kg which is at rest (V₂ before = 0). If the collision is completely elastic, what will be the speed and direction of each ball after the collision. (Use notation given on this exam for elastic collisions.) Equations for one dimensional elastic collision V₁after = V₁before[m₁-m₂] /[m, + m₂] + V₂before[ 2m₂]/[m, + m₂] after = V before [2m₁] /[m₁ + m₂] + V₂before[m₂-m₁ ]/[m, + m₂]

A ball of mass m₁ = 2.7 kg moving horizontally right with a speed of 4.5 m/s collides head-on with a second ball of mass m₂ = 0.27 kg which is at rest (V₂ before = 0). If the collision is completely elastic, what will be the speed and direction of each ball after the collision. (Use notation given on this exam for elastic collisions.) Equations for one dimensional elastic collision V₁after = V₁before[m₁-m₂] /[m, + m₂] + V₂before[ 2m₂]/[m, + m₂] after = V before [2m₁] /[m₁ + m₂] + V₂before[m₂-m₁ ]/[m, + m₂]