Research on the looping pendulum phenomenon
Zhou Yu-bo, Yang Ming-duo, Min Zhang, Dai-He Fan, Liu Qi-jun, Chang Xiang-hui, Jia Xin-yan, Wei Yun · European Journal of Physics · 2019
Abstract The phenomenon of the looping pendulum proposed by the International Young Physicists’ Tournament in 2019 is investigated experimentally and theoretically. By dividing the looping pendulum phenomenon into two physical stages, and establishing physical models, the effects of mass ratio, thread length, initial release angle, and friction coefficient on the dropping height, velocity of the heavy load, and trajectory of the light load in the phenomenon are numerically simulated. Furthermore, experiments are carried out to verify the theoretical predictions. The experimental results are consistent with the results of the theoretical analysis.