LT-YD08 Mea hoʻāʻo no ke kiʻekiʻe o ka hoʻokiʻekiʻe ʻana o ka papa tennis papaʻaina a me ka hoʻokiʻekiʻe ʻana o ka tennis papaʻaina (mālamalama ʻia)

Wehewehe Pōkole:

Hoʻohui kēia mea hoʻāʻo kukui no ke kiʻekiʻe rebound papaʻaina tennis papaʻaina a me ka bounce pōpō i nā hana hoʻāʻo pālua no ka elasticity o ka ʻili a me ka hana dynamic pōpō. Ma ka hoʻohana ʻana i kahi ʻōnaehana ana photoelectric kiʻekiʻe, ana ia a hoʻopaʻa i ke kiʻekiʻe rebound ma hope o ka hāʻule ʻana o kahi pōpō mai kahi kiʻekiʻe i kuhikuhi ʻia ma luna o ka papaʻaina a i ʻole kahi papa kila maʻamau e like me nā kūlana honua, e hāʻawi ana i ka ʻikepili quantitative mana no ka hōʻoia ʻana i nā lako hoʻokūkū.