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The concept of torque is crucial in understanding how forces applied at different points on an object can cause it to move or rotate differently.
  • When a force is applied directly in line with an object's center of mass, it results in linear motion.
  • Applying a force off-line from the center of mass can cause the object to rotate or spin, introducing the concept of torque.
  • Torque is calculated as the product of the force applied, the distance from the point of application to the center of rotation (lever arm), and the sine of the angle between them.
  • The maximum torque is achieved when the force is applied perpendicular to the lever arm, and there is no torque when the force is applied in line with the lever arm.
  • Balancing torques involves ensuring that the clockwise and counter-clockwise torques are equal, a principle used in solving problems involving levers and balances.
Introduction to Torque
Leverage and Force Application
Calculating Torque
Torque in Balancing Problems