Acar has a momentum of 20,000 kg • m/s. what would the car’s momentum be if its velocity doubles?

Hi! The definition of momentum is the "quantity of motion that an objet has", it means the product of the mass and velocity, so P = mv.

If the initial momentum is P₁ = m*v =20000 kg*m/s If we double the velocity, then P₂= m*2*v = 2*20000 kg*m/s = 40000 kg*m/s.

So if you multiply the velocity (or the mass) by any number, then you need to multiply the momentum by the same number.

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