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GreenTea09
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Homework Statement
A car and a train collides with each other in an elastic collision. The mass of the train is much more larger than the mass of the car. Ignore air resistance and friction from the railway tracks and roads.
Just before impact the car has a velocity of (V) train has a velocity of (-V).
What is the velocity of the car immediately after its collision with the train? Express your answer in terms of (V).
Homework Equations
m1u1+m2u2=m1v1+m2v2
0.5(mass of car)*v^2 + 0.5(mass of train)*V^2= 0.5*mass of car*(v1)^2 + 0.5(mass of train)*(v2)^2
The Attempt at a Solution
i tried using:
m1u1+m2u2=m1v1+m2v2
as well as conservation of K.E as the collision is elastic.
but there seem to be too many unknowns and i can't express my answer in terms of just (V)..
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