🟦 Block
⬇️ mg sinθ
↗️ Normal (N)
⬆️ Friction (f)
🎯 Net Force
Acceleration (a)
0.00
m/s²
Net Force (F_net)
0.00
N
Friction Force (f)
0.00
N
Normal Force (N)
0.00
N
⚡ Forces along the incline
mg sinθ (down)
0.00 N
Friction f (up)
0.00 N
F_net = mg sinθ - f
0.00 N
📊 Motion Status
At Rest
θ_critical =
21.8°
🔍 What to Observe
- When θ < θ_critical → block stays at rest
- When θ > θ_critical → block accelerates DOWN
- Normal force N = mg cosθ decreases as θ increases
- Friction opposes motion (acts UP the incline)
- Kinetic friction is constant: f_k = μₖN
- At θ = 90°, N = 0, block falls freely (a = g)