Question

A mass of 0.40 kg is attached to a spring and
is set into vibration with a period of 0.15 s.
What is the spring constant of the spring?
Answer in units of N/m

what is the rearranged equation to get for k?

Answer 1

The period is P = 2*pi*sqrt(m/k)
You know m.

Solve for k.

[P/(2 pi)]^2 = P^2/(4*pi^2) = m/k

Answer 2

i go it wrong