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?

For a simple pendulum, the period is T = 2π√(L/g), where L is the rod length and g is gravitational acceleration. A shorter rod decreases L, which decreases the period. The mass does not affect the period, so changing the mass would not help.

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