Предмет: Физика, автор: iohan200890

Мальчик массой 50 кг прыгнул в высоту на 7 см . Определите работу и мощность, которую он развил, если подъём продолжался 2 секунды

Ответы

Автор ответа: ripgenAl

Ответ:

Дано:

m = 50 кг

h = 7 см

g = 9.8 м/с²

t = 2 c

Формулы:

N = A/t

A = m * g * h

N = mgh/t

Решение:

N = 50 * 9.8 * 7 / 2 = 490*3,5=1715

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