Question

Tolong bantu tugas fisika (bukan ulangan)

Answer 1

1. F₁ : F₂ = Gm₁m₂/r² : Gm₁m₂/(2r)²

F₁ : F₂ = 1 : 1/4 = 4 : 1

2.

F₁ : F₂ = Gm₁m₂/R² : Gm₁m₂/(R+h)²

500 : F₂ = 1/R² : 1/(2,5R)²

500 : F₂ = 1 : 1/2,5²

F₂ = 500. 1/2,5² = 80 N

Berat di h adalah 80 N

3.

F₁ : 640 = Gm₁m₂/R² : Gm₁m₂/(9/8R)²

F₁ : 640 = 1 : 1/(9/8)²

F₁ = 640/(9/8)²

F₁ = 505,7 N

4.

Fao = Fbo

Gma. mo/r² = Gmb.mo/(5-r)²

90/r² = 40/(5-r)²

9/r² = 4/(5-r)²

3/r = 2/(5-r)

15-3r = 2r

5r = 15

r = 3 m

5. Fᵣ = √(F² + F² + 2FFcos 60)

Fᵣ = F√3

Fr = GMM√3/r²