s₁=45 m
α=26⁰
s₂=?
ΔPE +W(fr)₁ =KE =W(fr)₂,
ΔPE +W(fr)₁ =W(fr)₂,
mgh+ F(fr)₁•s₁ = F(fr)₂•s₂.
h=s₁•sinα,
F(fr)₁ =μ•N₁=μ•mgcosα,
F(fr)₂ =μ•N₂=μ•mg,
mgs₁sinα + μ•mgcosα•s ₁ = μ•mg s₂,
s₁•sinα + μ•cosα•s ₁ = μ•s₂,
s₂=(s₁•sinα + μ•cosα•s ₁)/μ =…
Children sled down a 45 m long hill inclined at 26 degrees. At the bottom, the slope levels out. If the coefficient of friction is 0.1, how far do the children slide on the level ground?
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