Physics, asked by Akanksha111, 1 year ago

vdudbllsbnx
kindly help me with this Ques......

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Answered by TheEdward
4
F = ? 

A = 1 mm ² 1 x 10⁻⁶ m³

l =  l 

Δl = 8/5 - 1  = 3/5 l 

Y = stress / strain 

Y = F x l /A x Δl 

F = Y x A x Δl / l 

F = 2 x 10¹¹ x 10⁻⁶ x 3/5 l / l 

F = 6  x 10⁻⁵ / 5 

F = 1.2 x 10⁻⁵ N 


p = h ρ g 

p = 100 x 1000 x 9.8 

p = 9.8 x 10⁵ Pascal
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