Physics Help. Answer please.?

2015-12-09 9:14 pm
A body of unknown mass is attached to an ideal spring with force constant 125 N/m . It is found to vibrate with a frequency of 6.05 Hz .

Find the period.

Find the angular frequency.

Find the mass of the body.

回答 (1)

2015-12-09 10:00 pm
✔ 最佳答案
ω = 2πf = √(k/m)

(i) period T = 1 / f = 1 / 6.05/s = 0.165 s

(ii) ω = 2π * 6.05/s = 38.0 rad/s

(iii) 38.0 rad/s = √(125N/m / M)
M = 0.0865 kg

Hope this helps!


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