Theory of Machine
The velocity of a particle moving with simple harmonic motion, at any instant is given by (where ω = Displacement of the particle from mean position)

ω² √(r² - x²)
ω² √(x² - r²)
ω √(x² - r²)
ω √(r² - x²)

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Theory of Machine
The steering of a ship means

None of these
Rolling of a complete ship sideways
Turning of a complete ship in a curve towards right or left, while it moves forward
Movement of a complete ship up and down in vertical plane about transverse axis

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