In: Physics
Mass in kg |
T20 Times for 20 cycles) |
Period (T) |
Period squared (T2) |
.10 |
9 |
.45 |
.2025 |
.20 |
12 |
.6 |
.36 |
.30 |
15 |
.75 |
.5625 |
.40 |
18 |
.9 |
.81 |
Amplitude (x0)=5 cm
Find the spring constant and value of q
Given that :
amplitude, x0 = 5 cm = 0.05 m
Total mass (in kg) : [(0.1) + (0.2) + (0.3) + (0.4)] kg
m = 1 kg
Total time-period squared (in s2) : [(0.2025) + (0.36) + (0.5625) + (0.81)] s2
T2 = 1.93 s2
The spring constant which will be given as :
using an equation, T = 2m / k { eq.1 }
squaring on both sides, we get
T2 = 42 (m / k)
k = 42 m / T2 { eq.2 }
inserting the values in eq.2,
k = 4 (3.14)2 (1 kg) / (1.93 s2)
k = (39.4 / 1.93) N/m
k = 20.4 N/m