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Physics collision problem?
Two hockey players approach each other head on, each traveling at the same speed vi. They collide and get tangled together, falling down and moving off at a speed (vi/9). What is the ratio of their masses?
m1/m2=?
1 Answer
- billrussell42Lv 75 months agoFavorite Answer
conservation of momentum
since the directions are opposite, assign the second one as negative.
algebraic sum of momentum initial has to equal momentum after.
m₁v – m₂v = (m₁ + m₂)(v/9)m₁v – m₁v/9 = m₂v + m₂v/9(8/9)m₁v = (10/9)m₂vm₁/m₂ = (10/9) / (8/9) = 10/8 = 5/4or 4/5 depending on which is which...
