Class 11 · Chapter

System of Particles & COM

7 topics · 7 interactive simulations

x_COM = Σmᵢxᵢ / Σmᵢ — drag 3 masses and watch the COM marker shift.

v_COM is constant when F_ext = 0 — see COM move in a straight line despite collisions.

p = mv — momentum scales linearly with velocity; KE scales quadratically.

J = FΔt = Δp — before/after view with momentum change computed.

Stationary body explodes into two — m₁v₁ + m₂v₂ = 0 demonstrated live.

L = r × p = mr²ω — rotating ball with L vector (out of page).

F_thrust = u(dm/dt) — rocket loses mass and gains velocity.