Physics 9702 · AS & A Level · Equations of motion

Equations of motion — practice question

For an object released from rest and falling through a given distance on Mars, the time taken is $T_M$. For the same object, released from rest and falling through that same distance on Earth, the time taken is $T_E$. The acceleration of free fall on Mars is $3.71\,\text{m s}^{-2}$. Air resistance may be taken as negligible on both Earth and Mars. What is the ratio $\frac{T_M}{T_E}$?

  • A0.378
  • B0.615
  • C1.63
  • D2.64

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