How many times within 16 seconds will the kinetic energy of the pendulum reach its maximum value if the oscillation frequency

How many times within 16 seconds will the kinetic energy of the pendulum reach its maximum value if the oscillation frequency is 0.5 Hz and at the initial moment the weight of the pendulum is not in equilibrium?

Let’s find the number of oscillations:
n = vt = 0.5 * 16 = 8
In one oscillation, the kinetic energy of the pendulum reaches its maximum value 2 times, so in 16 seconds the kinetic energy will reach its maximum value 16 times.

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