Which of the following is the correct expression for secondary force?

1.	Which of the following is the correct expression for secondary force?
A.	mω2r.cos2θ/n
B.	mω2r.sin2θ/n
C.	mω2r.tan2θ/n
D.	mω2r.cosθ/n
Answer» B. mω2r.sin2θ/n

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Which of the following is the correct expression for secondary force?

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