3 years ago

Help m-e-e people -_-!

Physics

1 answer:

xxTIMURxx [149]3 years ago

6 0

Answer:

the answer is

Explanation:For equilibrium

Weight = Tension

mg=T

∴T=4×3.1π=12.4πN (as can be inferred from the question)

△l/l

T/A

1000

0.031

/20

12.4π/π(

1000

)

4×0.031

12.4×20×1000×(1000)

=2×10

N/m

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