For forces P=3 N, Q=4 N and R=5 N in Lami’s equilibrium, if k=P/sinα, express R in terms of k and γ, where γ is the angl...

Type: MCQ • Marks: 1

For forces P=3 N, Q=4 N and R=5 N in Lami’s equilibrium, if k=P/sinα, express R in terms of k and γ, where γ is the angle between P and Q.

A. k/sin γ

B. k tan γ

C. k sin γ

D. k cos γ

Explanation

Lami’s theorem gives R/sinγ=k; hence R=k sinγ.

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