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

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1.	The piston of a steam engine moves with simple harmonic motion. The crank rotates at 120 r.p.m. with a stroke of 2 metres. Find the acceleration of the piston, when it is at a distance of 0.75 metre from the centre.
A.	118.46 m/s<sup>2</sup>
B.	90 m/s<sup>2</sup>
C.	100 m/s<sup>2</sup>
D.	none of the mentioned
Answer» B. 90 m/s<sup>2</sup>

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The piston of a steam engine moves with simple harmonic motion. The crank rotates at 120 r.p.m. with a stroke of 2 metres. Find the acceleration of the piston, when it is at a distance of 0.75 metre from the centre.
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