How many vibrations does the body make in 1 s if the vibration frequency is 2 Hz, 20 Hz?

To calculate the number of vibrations of a given body in 1 s, we will use the formula: nх = νх * t.

Variable values: ν1 – the first vibration frequency (ν1 = 2 Hz); ν2 – second vibration frequency (ν2 = 20 Hz); t is the duration of the oscillations (t = 1 s).

Let’s make a calculation: a) n1 = ν1 * t = 2 * 1 = 2 oscillations;

b) n2 = ν2 * t = 20 * 1 = 20 oscillations.

Answer: For 1 s, a given body should have made 2 and 20 vibrations, respectively.