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

The piston of a steam engine moves with a simple harmonic motion. The

1.	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.
Answer» D. 12.88 m/sec.