Physics 9702 · AS & A Level · Equations of motion

Equations of motion — practice question

An object is released from rest on the Earth from a height of $2.0\,\text{m}$. The same object is released from rest on the Moon from a height that is twice as large. The acceleration of free fall on the Moon is about $16\%$ of the value on the Earth. Assume that no resistive forces act on the object. What is the ratio $\dfrac{\text{speed of the object just before hitting the surface on the Earth}}{\text{speed of the object just before hitting the surface on the Moon}}$?

  • A$1.8$
  • B$2.5$
  • C$3.1$
  • D$3.5$

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