Question 2 of 13 Map Sapling Learning macmillan learning The spaceship Intergala

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Question 2 of 13 Map Sapling Learning macmillan learning 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 Plánet's surface by means of a simple pendulum of length 1.21 m. She sets the pendulum swinging, and her collaborators carefully count 103 complete cycles of oscillation during 206 s. What is the result? Number

Explanation / Answer

length of the pendulum, l=1.21m

no of oscillation, n=103

time taken, t=206 sec

===>

time period, T=206/103

T=2 sec

use,

T=2pi*sqrt(l/g)

2=2pi*sqrt(1.21/g)

===> g=11.94 m/sec^2

acceleration due to gravity on the Pink Planet's surface, g=11.94 m/sec^2

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