Предмет: Физика, автор: Trawest

Снаряд массой 2 кг вылетает из ствола орудия в горизонтальном направлении со скоростью 400 м/с. Определить значение равнодействующей силы,считая ее постоянной, если длина ствола равна 2,5 метра.

Ответы

Автор ответа: aniram909

По второму закону F=ma
ускорение можно найти из формулы перемещения без времени
$S= frac{V^2}{2a}$
выражаем ускорение
$a= frac{V^2}{2S}$
400^2/2*2,5=32000
далее F=2*32000=64000
единицы укажите сами

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