A) 2k
B) 3.5 k
C) 4.5 k
D) 9k
E) 9.5 k
Correct Answer: C
Solution :
\[U=\frac{1}{2}k(x_{2}^{2}-x_{1}^{2})\] \[=\frac{1}{2}k({{3}^{2}}-{{0}^{2}})\] \[=\frac{9}{2}k=4.5\,k\]
You need to login to perform this action.
You will be redirected in
3 sec
