Physics 9702 · AS & A Level · Gravitational potential energy and kinetic energy

Gravitational potential energy and kinetic energy — practice question

A train having a mass of $600\,000\,\text{kg}$ travels at a speed of $100\,\text{km h}^{-1}$. What is the order of magnitude of the train’s kinetic energy?

  • A$10^6\,\text{J}$
  • B$10^8\,\text{J}$
  • C$10^{10}\,\text{J}$
  • D$10^{12}\,\text{J}$

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