- #1
Baslim
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Homework Statement
Two cars A and B slide on an icy road as they attempt to stop at a light. The mass of A is 1100kg, B is 1400kg. The coefficient of kinetic friction between both cars is 0.130. Car A comes to rest at the light, but car B rear-ends car A. After the collision, A comes to rest 8.2m from the collision point, and B 6.1 meters from collision point.
(a) From the distanced traveled by each car, find the speed of each after impact.
(b) Use conservation of momentum to find the speed when B hit A.
Homework Equations
m1v1i + m2v2i = m1v2f + m2v2f
The Attempt at a Solution
I only know how to solve part (b), but I need information from A to actually calculate it. The equation is based on the conservation of momentum. Where the initial velocity of car B is v2i = (m1v1f + m2v2f)/m2 ...I think...