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The damping force on an oscillator is directly proportional to the velocity. The unit of the constant of proportionality is:

1. kgms⁻¹
2. kgms⁻²
3. kgs⁻¹
4. kgs⁻²

Correct answer: kgs⁻¹

Solution

The damping force is proportional to velocity, so the constant of proportionality must have units such that when multiplied by velocity (m/s), it gives force (kg·m/s²). This makes the unit of the constant kgs⁻¹.

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