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10.6 Torque - University Physics Volume 1 | OpenStax

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An important quantity for describing the dynamics of a rotating rigid body is torque. We see the application of torque in many ways in our world. We all have an intuition about torque, as when we use a large wrench to unscrew a stubborn bolt. Torque is at work in unseen ways, as when we press on the accelerator in a car, causing the engine to put additional torque on the drive train. Or every time we move our bodies from a standing position, we apply a torque to our limbs. In this section, we define torque and make an argument for the equation for calculating torque for a rigid body with fixed-axis rotation. So far we have defined many variables that are rotational equivalents to their translational counterparts. Let’s consider what the counterpart to force must be. Since forces change the translational motion of objects, the rotational counterpart must be related to changing the rotational motion of an object about an axis. We call this rotational counterpart torque. In everyday life,

10.6 Torque - University Physics Volume 1 | OpenStax Skip to Content Go to accessibility page Keyboard shortcuts menu University Physics Volume 1 10.6 Torque University Physics Volume 1 10.6 Torque Contents Highlights Print Close 10.6 Torque By the end of this section, you will be able to: Describe how the magnitude of a torque depends on the magnitude of the lever arm and the angle the force vector makes with the lever arm Determine the sign (positive or negative) of a torque using the right-hand rule Calculate individual torques about a common axis and sum them to find the net torque An impo

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