Tip vs Slide: Block on an Incline

Every object resting on a ramp fails in exactly one of two ways as the tilt increases: it slides, or it tips over — and which one happens first is decided purely by geometry and friction, not by guesswork. This simulator renders a real rigid block on a 3D ramp and computes both critical angles live: θ_s = atan(μ) for sliding and θ_t = atan(b/h) for tipping. Drag the sliders to reshape the block or change the surface's grip, then either drag the incline angle by hand or hit Auto-tilt to watch the ramp rise on its own until the block genuinely slides down the slope or rotates about its downhill edge under real torque-driven toppling dynamics — never a canned animation.