Prujina egiluvchanligi va og‘irlik kuchi ta’sirida qiya sirt bo‘yicha (ideal sirt) hara-katlanayotgan sharikning harakat tenglamasini tuzing. Sirt tenglamasi .
kattaliklarni ushbu rasmdagi sistemada sharik mahkamlanishi nuqtasiga tegmaydigan qilib tanlang.
(8) tenglamada harakat so‘nuvchan ekanligini ko‘rsating.
(9) tenglama yechimini holda giperbolik funksiya orqali yozing.
(8) tenglama yechimi da nolga intilishini ko‘rsating.