Question

HELP ME

Answer 1

@ivanmlerner

Answer 2

@mukushla

Answer 3

Consider Hooke's Law which says within a certain limit stress is proportional to strain.
As rods are made up of same material proportionality constant are same then solve
the problem

Answer 4

i knew..., i've tried.., but not work

Answer 5

You might consider it again.......you can check on compressive/tensile stress signs

Answer 6

what did you get it??

Answer 7

It doesn't matter

Answer 8

I got 4.7746 mm

Answer 9

still doesn't work

Answer 10

Be cautious about substituting the area.....circular cross sections....square cross
sections...