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What is the correct answer?


The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 metres. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

A. 5.88 m/sec

B. 8.88 m/sec

C. 10.88 m/sec

D. 12.88 m/sec

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