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Conservation of Momentum

A car and a t...

Question

A car and a truck have the same momentum. The mass of the car is half of the mass of the truck.
The ratio of the velocities of the car and the truck is

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Solution

Momentum of the car,P1 = m1v1
Momentum of the truck,P2 = m2v2
Given,P1 = P2 and m1 = m2/2
So,
m1v1= m2v2
m2/2×v1 = m2×v2
v1:v2 = 2:1

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