Kinematics and forces

Torque

τ = rF sin θ

r lever arm, F force, θ angle between r and F

Watch forIn rotational equilibrium, clockwise torques equal counterclockwise torques.

Apply it · 2 questions

  1. Torque balance on a seesawMotion, forces, and energy · set 1 · easy
  2. Torque at an angleMotion, forces, and energy · set 6 · hard