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Rotational Dynamics Calculator

Calculate and visualize rotational motion by analyzing torque, angular momentum, angular acceleration, and rotational kinetic energy. This calculator supports both scalar (magnitude-angle) and vector inputs with multiple object shapes to compute moment of inertia and dynamic behavior.

Formulas Used

  • Torque: τ = r × F = rₓFᵧ − rᵧFₓ
  • Angular Momentum: L = I × ω
  • Angular Acceleration: α = τ / I
  • Rotational Kinetic Energy: KE = ½ I ω²
  • Point Mass: I = m r²
  • Disk: I = ½ m r²
  • Rod (center): I = (1/12) m L²

Use Cases

  • - Torque and rotational motion analysis
  • - Mechanical and engineering system design
  • - Robotics and rotational control systems
  • - Physics problem solving (circular motion)
  • - Energy and angular momentum calculations

Force

Position Vector (from Pivot)

Calculation History