Question

The energy stored in a 2 m long copper wire of
cross-sectional area 0.5 mm2 if a force of 50 N is
applied to it is (Y=1.2 x 1011 N/m2)
(1) 0.2 J
(2) 0.4 J
(3) 0.02 J
(4) 0.04 J
plzz rplyy soon ans is (4) but how​

Answer 1

Answer:

answer is not 4

Explanation:

answer cant be 4

it may be wrong in the key book you have

Answer 2

Answer:

it's four

Explanation:

I have this doubt too