dane: m1= 30kgm2= 36 kgr = 2,2 m
szukane:
r1=?
r2=?
proszę o pomoc!
m₁ = 30 kg
m₂ = 36 kg
r = 2,2m
g = 10 m/s² = 10 N/kg
r₁ ,r₂ = ?
1. obl.ciężar F = m *g
F₁ = 30 kg *10 N/kg = 300 N
F₂ = 36 kg *10 N/kg = 360 N
2. prawo równowagi:
F₁ *r₁ = F₂ *r₂
r₁ +r₂ = r ; r ₁ = r - r₂ ; wstawiam do prawa równowagi i obl. r₂
F₁ * (r - r₂) = F₂ * r₂
F₁ *r - F₁* r₂ = F₂ * r₂
F₁ *r = F₂ * r₂ + F₁ * r₂
F₁ * r = r₂ (F₂ + F₁)
r₂ = F₁ * r /F₁ + F₂
r₂ = 300 N * 2,2 m/360 N
r₂ = 1 m
r = r₁ +r₂
r₁ = r - r₂
r₁ = 2,2 m- 1 m = 1,2 m
r₁ = 1,2 m
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
m₁ = 30 kg
m₂ = 36 kg
r = 2,2m
g = 10 m/s² = 10 N/kg
r₁ ,r₂ = ?
1. obl.ciężar F = m *g
F₁ = 30 kg *10 N/kg = 300 N
F₂ = 36 kg *10 N/kg = 360 N
2. prawo równowagi:
F₁ *r₁ = F₂ *r₂
r₁ +r₂ = r ; r ₁ = r - r₂ ; wstawiam do prawa równowagi i obl. r₂
F₁ * (r - r₂) = F₂ * r₂
F₁ *r - F₁* r₂ = F₂ * r₂
F₁ *r = F₂ * r₂ + F₁ * r₂
F₁ * r = r₂ (F₂ + F₁)
r₂ = F₁ * r /F₁ + F₂
r₂ = 300 N * 2,2 m/360 N
r₂ = 1 m
r = r₁ +r₂
r₁ = r - r₂
r₁ = 2,2 m- 1 m = 1,2 m
r₁ = 1,2 m