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Questions  

Figure shows two ships moving in x-y plane with velocities VA and VB. The ships move such that B always remains north of A. The ratio VBVA is equal to :

a
cos θ
b
sin θ
c
sec θ
d
cosec θ

detailed solution

Correct option is C

vBcos θ=vAfor ‘B’ to remain north of ‘A’vBvA=1cosθ=secθ

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