Question

what is forced vibrations ?​

Answer 1

Answer:

Forced vibration occurs when motion is sustained or driven by an applied periodic force in either damped or undamped systems.

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Answer 2

Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.

Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.Hope it helps you