Physics 0625 · IGCSE · Momentum

Momentum — practice question

An object has a velocity of $+3.0\,\text{m s}^{-1}$. A force is applied to the object. Later, its velocity becomes $-4.0\,\text{m s}^{-1}$. The object's mass is $5.0\,\text{kg}$. What is the change in momentum of the object?

  • A$-35\,\text{kg m s}^{-1}$
  • B$-5.0\,\text{kg m s}^{-1}$
  • C$+5.0\,\text{kg m s}^{-1}$
  • D$+35\,\text{kg m s}^{-1}$

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