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

Gravitational potential energy and kinetic energy — practice question

A cube made of concrete has side $0.60\,\text{m}$ and a uniform density of $2.0 \times 10^3\,\text{kg m}^{-3}$. It is raised $5.0\,\text{m}$ vertically by a crane. What change in potential energy does the cube have?

  • A$2.2\,\text{kJ}$
  • B$21\,\text{kJ}$
  • C$59\,\text{kJ}$
  • D$450\,\text{kJ}$

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