The extension in a spring when 5g wt was hung from it was 0.56cm. If Hooke's law is obeyed, What is the extension caused by a load of 20g wt?
A
1.12m
B
2.14cm
C
2.52cm
D
2.80cm
E
2.24cm
Verified Correct Answer: E.
Physical Principles & Numerical Solution
Extension & Load
Extension = K constant
\(\frac{\text{load}}{0.56cm}\) = \(\frac{X}{20g}\)
X = 2.24cm
Source: Myschool Past Questions Archive (Record #29030)