Respuesta :
A sleeping hippopotamus and a mountain both have zero momentum.
What is momentum?
Momentum is the product of velocity and mass of the object.
A sleeping hippopotamus is compared to the heavy mass object which is stationary. A stationary object has no velocity.
Similarly, a mountain is also a heavy object which is always at rest.
Therefore, a sleeping hippopotamus and a mountain both have zero momentum.
Learn more about momentum.
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