Consider the three forces acting at O and in equilibrium as shown in the figure. Which of the following equations is/are CORRECT? I. P1 sin ?1 = p1 cos ?2 I...

Question 1 Report

Consider the three forces acting at O and in equilibrium as shown in the figure. Which of the following equations is/are CORRECT?

I. P₁ sin ?₁= p₁ cos ?₂

II. P₃ = P₁cos ?₄ + P₂cos₂

III. P₁ sin ?_1 =p₂ sin ?₂

I only

ii only

iii only

I, II and III only

Answer Details

From ?ABC

P = P₁ cos ?

From $?$ ACD

P = P₂ cos?₂

P₁ cos ?₁

P₂Cos ?₂

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