Question

A 240 g air-track glider is attached to a spring. The glider is pushed in 11.2 cm against the spring, then released. A student with a stopwatch finds that 14 oscillations take 14.0 s. What is the spring constant?

Answer #1

the time requared for one oscillation,t =14/14

t = 1 s

But t = 2π√m/k

1/2π = √m/k

==> k = m/(1/2π)^2

∴ k =0.240/0.025 N/m

=9.6N/m

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