Предмет: Физика, автор: Joker7722895

Упражнение 13д 1. Открывая дверь, длину дверной пружины увеличили на 12 см; сила упру гости пружины составила при этом 0,004 кн. При каком удлинении пружины сила упругости станет равной 10 Н? 2. Определите жесткость пружины, которая под действием силы 2 Н растянулась на 5 мм пожалуйста с оформлением и решением

Ответы

Автор ответа: Маке001

x=12см
F=0,004kH

F=kx➡k=F/x
k=4/12*10^-2
k=400/12
k=33.33H/м

F=10H
F=kx
10=k*12*10^-2
k=100/12
k=8. 33H/м
это первый

Автор ответа: Маке001

вот второй : F=kx k=F/x=2/4*10^-3=2000/4=500H/м

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