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The diagram below shows a spacecraft in a stable, clockwise circular orbit around Mars.

Spacecraft orbiting Mars

Which option correctly identifies the arrows representing the instantaneous velocity vector ( $v⃗\vec{v}$ ) of the spacecraft and the gravitational force ( $F⃗g\vec{F}_g$ ) acting on it?

$v⃗\vec{v}$ is shown by Arrow X; $F⃗g\vec{F}_g$ is shown by Arrow W

$v⃗\vec{v}$ is shown by Arrow Z; $F⃗g\vec{F}_g$ is shown by Arrow W

$v⃗\vec{v}$ is shown by Arrow X; $F⃗g\vec{F}_g$ is shown by Arrow Y

$v⃗\vec{v}$ is shown by Arrow W; $F⃗g\vec{F}_g$ is shown by Arrow X

The Solar System and orbits Questions

Practise Edexcel GCSE Physics The Solar System and orbits with exam-style questions for Foundation and Higher tier. 51 questions, matched to the Edexcel GCSE Physics (1PH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.