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1. |
The piston of an engine moves with SIMPLE HARMONIC MOTION. The crank rotates at a speed of 120 r.p.m. with a stroke of 2 metres. Find the velocity of the piston in m/s2, when it is at a distance of 0.75 metre from the centre. |
A. | 118.46 |
B. | 117.33 |
C. | 128.41 |
D. | 119.02 |
Answer» B. 117.33 | |