Предмет: Физика, автор: Rikki3434

мощность трактора на крюке 27 кВт.Сможет ли трактор перемещать пяти лемешный плуг и борону со скоростью 6км\ч,если их тяговые сопротивления соответственно равны 14 700 Н и 5900 Н?

Ответы

Автор ответа: nocturne1

Нет не сможет. Найдем силу трактора по формуле:
F=N:V=27000:1,667м/с=16 196Н
Общее сопротивление и плуга и бороны=14700+5900=20600
16196<20600 поэтому трактор не сможет перемещать

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