Предмет: История, автор: artemsanovskij

Срочно!!!
Визначте швидкість, з якою кинули вертикально вгору тіло масою 1 кг, якщо проти сили тяжіння за час руху тіла до найвищої
точки траєкторії була виконана робота 50 Дж.

Ответы

Автор ответа: Аноним

Ответ:

Поскольку силами сопротивления предлагается пренебречь, вся кинетическая энергия в начале траектории перейдёт в потенциальную энергию впри достижении максимальной высоты. Работа против сил тяжести как раз и равна этой энергии, стало быть можно записать:

А = mgh = mv²/2 = 1*100/2 = 50 Дж

поскольку 36 км в час = 10 м в с

Объяснение:

artemsanovskij: Лучший !♥️

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The Times, daily newspaper published in London, one of Britain’s oldest and most influential newspapers. It is generally accounted, with The Guardian and The Daily Telegraph, one of Britain’s “big three” and has long been recognized as one of the world’s greatest newspapers.

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