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Grade: upto college level
        A load of 10 kg is suspended by a metal wire 3 m long and having a cross-sectional area 4 mm2. Find (a) the stress (b) the strain and (c) the elongation. Young modulus of the metal is 2.0 × 1011 N m-2. 
5 years ago

Answers : (2)

Jitender Pal
askIITians Faculty
365 Points
							Sol. F = mg
Stress = F/A
Strain = ∆L/L
Y = FL/A∆L ⇒ ∆L/L = F/YA

						
5 years ago
Ravi
13 Points
							
Load 12kg wire 3m area 5mm2.ccacalcalccalcucalculcalculate sststrstrestreastress sststrstrastranstrastraistrainstrain 
one year ago
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