A long rope is held under tension between two points A and B. Point A is made to vibrate
vertically and a wave is sent down the rope towards B . The time for one oscillation of point A on the rope is 0.20 s. The point A moves a distance of 80 mm during one oscillation. The wave on the rope has a wavelength of 1.5 m.Calculate, for the wave on the rope, the amplitude ?

Question

A long rope is held under tension between two points A and B. Point A is made to vibrate
vertically and a wave is sent down the rope towards B . The time for one oscillation of point A on the rope is 0.20 s. The point A moves a distance of 80 mm during one oscillation. The wave on the rope has a wavelength of 1.5 m.Calculate, for the wave on the rope, the amplitude ?

anonymous · Answer

attachment

anonymous · Answer

y = A sin wt 
 
in this formula, A is amplitude, and it is one-quarter of the distance travelled up and down in one cycle.