Предмет: Физика, автор: rusetka01

ПОМОГИТЕ ПОЖАЛУЙСТА!!!!!!!!!!!! плечам рычага находящегося в равновесии приложены силы 30Н и 70Н. найдите длину большего плеча (в метрах), если длина маленького 30 см. округлите до сотых

Ответы

Автор ответа: alexlar30

Ответ:

70 см

Объяснение:

Рычаг в равновесии, если моменты сил равны.

Момент силы - это произведение силы на плечо, т.е. F1×L1 = F2×L2.

30 см × 70 H = x см × 30 Н. x = 70 см

rusetka01: спасибо большое

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