The piston of an engine moves with simple harmonic motion. The crank rotates at 120 r.p.m. with a stroke of 2 meters. The velocity of the piston, when it is at a distance of 0.8 metre from the center is
- A. 4.8 pi
- B. 2.4 pi
- C. 1.2 pi
- D. 0.6 pi
Answer: B. 2.4 pi