Is the Calculation of Strain Due to Own Weight Correct?

chetzread · Sep 17, 2016

Homework Statement

for the elongation due to its own weight , i suspect the calculation of elonation due to its own weight is wrong ...

I think it should be (3456.3825)(75) / (300x10^-6)(200x10^3) = 4320m = 4320x10^3 mm , right ? [/B]

Bystander · Sep 17, 2016

Four kilometers?!

chetzread · Sep 17, 2016

Bystander said:

Four kilometers?!

anything wrong with my calculation ?

Bystander · Sep 17, 2016

Given that the original length is only 150 meters? What's your conclusion?

chetzread · Sep 17, 2016

Bystander said:

Given that the original length is only 150 meters? What's your conclusion?

sorry , here's the second image

Bystander · Sep 17, 2016

You've made mistake(s) in the conversion to meters (handwritten work, 2nd image). Try it again.

Chestermiller · Sep 17, 2016

Bystander said:

You've made mistake(s) in the conversion to meters (handwritten work, 2nd image). Try it again.

I'm looking at the units of E in his calculation, and it doesn't seem correct to me.