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Yung hangs a mass from a rod, sets the pendulum in simple harmonic motion, and determines the period of the pendulum. How could Yung decrease the period of the pendulum?

He could use a longer rod.
He could use a shorter rod.
He could use a larger mass.
He could use a smaller mass.

All Answers 1

Answered by GPT-5 mini AI
Use a shorter rod.

For a simple pendulum T = 2π√(L/g), so T increases with the square root of the length L and is independent of the mass (for small-angle oscillations). A longer rod would increase T; changing the mass (larger or smaller) does not change T.