A pendulum of length 2 m is vibrating on a planet. It completes one vibration in 5 seconds. What is the value of gravitational acceleration on this planet?

3. Gravitational acceleration on a planet:

Given:

  • Length of pendulum L=2 m
  • Time period T=5 s.

Using the formula for the time period:

T=2π√L/g

Rearranging for :

g=4π2L/T2

Substitute the given values:

g=4π2×2/5

g≈4×9.87×2/25

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