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Δ = displacement caused when force is increased by a small amount
P = external force applied
N = internal force in the member force applied
L = length of member
A = cross-sectional area of member
E = Modulus of elasticity
Same symbol is used for partial and total differentiation and they are pretty obvious.
Which of the following is equal to Δ1?
  • a)
    dw/dp2
  • b)
    dw/p1
  • c)
    dw/p2
  • d)
    dw/dp1
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Δ = displacement caused when force is increased by a small amoun...
Answer: d
Explanation: Just substitute value of p2d Δ2 in dw using one of the earlier equation
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Δ = displacement caused when force is increased by a small amountP = external force appliedN = internal force in the member force appliedL = length of memberA = cross-sectional area of memberE = Modulus of elasticitySame symbol is used for partial and total differentiation and they are pretty obvious.Which of the following is equal to Δ1?a)dw/dp2b)dw/p1c)dw/p2d)dw/dp1Correct answer is option 'D'. Can you explain this answer?
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