Physics help. Answer please?

2015-12-10 4:53 pm
An object that weighs 2.450 N is attached to an ideal massless spring and undergoes simple harmonic oscillations with a period of 0.640 s. What is the spring constant of the spring?
An object that weighs 2.450 N is attached to an ideal massless spring and undergoes simple harmonic oscillations with a period of 0.640 s. What is the spring constant of the spring?
2.45 N/m
24.1 N/m
0.610 N/m
12.1 N/m
0.102 N/m

回答 (1)

2015-12-10 10:59 pm
✔ 最佳答案
mass m = mg / g = 2.450N / 9.8m/s² = 0.25 kg

period T = 2π√(m/k)
T² / 4π² = m / k
(0.640s)² / 4π² = 0.25kg / k
k = 24.1 N/m

Hope this helps!


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