mg on a frictionless ramp
mg — weight, straight down
N = mg·cosθ — ⊥ surface
F∥ = mg·sinθ — ∥ surface
Quick angles
mg98.0 N
N = mg·cosθ—
F∥ = mg·sinθ—
Step through tabs 1→4
to see where the angles
come from — then drag θ
Step 1 — The base. A block sits on a frictionless ramp at angle θ. The only force acting is mg — straight down, always.