Physics 5054 · O Level · Energy

Energy — practice question

An astronaut on the Moon lets go of a tool box with mass $3.0\,\text{kg}$. It starts from rest, and when it strikes the surface its kinetic energy is $0.96\,\text{J}$. With what speed does the tool box strike the Moon’s surface?

  • A$0.46\,\text{m s}^{-1}$
  • B$0.57\,\text{m s}^{-1}$
  • C$0.64\,\text{m s}^{-1}$
  • D$0.80\,\text{m s}^{-1}$

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