Practice question · Numerical answer
A 3 kg mass hangs on a spring of stiffness k = 48 N/m. Using omega equal to the square root of k over m, what is its angular frequency, in rad/s?
Hints
- Divide the stiffness by the mass before taking the square root.
- 48 divided by 3 is 16.
Show the answer
4
Why
rad/s. The same square root that appeared in Lesson 4 reappears here as a stock calculation, the mathematics is unit-independent, which is the whole thesis of this lesson.
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