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Problem
Problem
Two springs have force constants
k
A
k_A
k
A
and
k
B
k_B
k
B
such that
k
B
=
2
k
A
k_B = 2k_A
k
B
=
2
k
A
. The four ends of the springs are stretched by the same force. If energy stored in spring A is
E
E
E
, then energy stored in spring B is a.
E
2
\frac{E}{2}
2
E
b.
2
E
2E
2
E
c.
E
E
E
d.
4
E
4E
4
E
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