Physics 9702 · AS & A Level · Momentum and Newton's laws of motion

Momentum and Newton's laws of motion — practice question

For an astronaut of mass $m$ inside a spacecraft, the gravitational force is $F = mg$ when the spacecraft is at rest on the launchpad. What is the gravitational force on the astronaut if the spacecraft is launched vertically upwards with an acceleration of $0.2g$?

  • A$1.2mg$
  • B$mg$
  • C$0.8mg$
  • D$0$

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