The change in momentum of the car is 15000 kg m/s.
Momentum is the strength gained by a moving body. It is calculated as the product of mass and velocity. Momentum is a vector quantity, which means it has both magnitude and direction.
We get the formula for calculating force from momentum from newton's second law. According to this law, " The force is equal to the time rate of change in momentum."
i.e., Force = Final momentum - initial momentum/ time
In the given question, we have to find a change in momentum
i.e. Force = Final momentum - initial momentum/ time
In the given question, we have to find change in momentum
Δp = [tex]M_{2[/tex][tex]V_{2[/tex] - [tex]M_{1[/tex][tex]V_{1[/tex]
= M ( [tex]V_{2[/tex] - [tex]V_{1[/tex])\
= 1500 (72-36) ×5/18
= 1500×2×5
= 15000 kg m/s
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