Вопрос школьника по предмету Физика
50 БАЛЛОВ!!!СРОЧНО!!!
какова сила тяги автомобиля движущегося со скоростью 5м/с ,если мощность его мотора 2 кВт
Ответ учителя по предмету Физика
Дано:
v=5м/c
P=2кВт=2000Вт
Найти
F тяги -?
Решение:
P=Fv
F=P/v=2000/5=400H
Ответ: 400 Н
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