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 1.49 m. She sets the pendulum swinging, and her collaborators carefully count 1.00 × 102 complete cycles of oscillation during 209 s. What is the result?

Explanation / Answer

Using the formula time period = 2l/g

We get time period = 2.04sec

And l=1.49m

So

Acceleration due to gravity = 14.01m/s^2

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