Physics 9702 · AS & A Level · Equilibrium of forces

Equilibrium of forces — practice question

A $0.10\,\text{kg}$ mass is transported to Mars, where it is measured using a spring balance and a lever balance. The acceleration due to gravity on Mars is $38\%$ of its value on Earth. What are the readings on the two balances on Mars? (Assume that on Earth $g = 10\,\text{m s}^{-2}$.)

  • Aspring balance $0.38\,\text{N}$, lever balance $0.038\,\text{kg}$
  • Bspring balance $0.38\,\text{N}$, lever balance $0.10\,\text{kg}$
  • Cspring balance $1.0\,\text{N}$, lever balance $0.038\,\text{kg}$
  • Dspring balance $1.0\,\text{N}$, lever balance $0.10\,\text{kg}$

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