The spaceship Intergalactica lands on the surface of the uninhabited Pink Planet

Question

The spaceship Intergalactica lands on the surface of the uninhabited Pink Planet, which orbits a rather average star in the distant Garbanzo Galaxy. A scouting party sets out to explore. The party's leader?a physicist, naturally?immediately makes a determination of the acceleration due to gravity on the Pink Planet's surface by means of a simple pendulum of length 1.11 m. She sets the pendulum swinging, and her collaborators carefully count 103 complete cycles of oscillation during 211 s. What is the result?

Explanation / Answer

T=2sqrt(l/g)

g=42l/T2=10.44m/s2

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