Предмет: Физика, автор: Ford1234577889

После падения, мяч отскочил от пола на высоту 80 см. Найти начальную скорость
мяча при отскоке?

Ответы

Автор ответа: Аноним
3

Дано: V=0;  h=0,8 м; Vo - ?

--------------------------------------

h=(V²-Vo²)/(-2g)      V=0

h=Vo²/(2g)

Vo²=2gh

Vo=√(2*10*0,8)=√16=4 м/с  -  это ответ.

Ford1234577889: спасибо большое!!!
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