If a load of 1 kg stretches a cord by 1.2cm, what is the force constant of the cord? {g=10ms-2}
-
A.
866Nm-1 -
B.
833Nm-1 -
C.
769Nm-1 -
D.
667Nm-1
Correct Answer: Option B
Explanation
K = (frac{F}{e})
K = (frac{1 times 10}{frac{0.2}{100}})
K = (frac{10}{12} times frac{1000}{1})