Final answer:
To quickly run a nut onto a bolt that resists manual spinning, you can use a power drill or socket wrench to provide the necessary torque. The application of torque is fundamental in this process, involving the force applied and the distance from the pivot point.
Step-by-step explanation:
To quickly run a nut onto a bolt that resists spinning it on with the fingers, you can drive the socket with a power drill or socket wrench. These tools provide the necessary torque to fasten the nut efficiently. When dealing with a tight bolt or nut, mechanics often use a length of pipe over the handle of a wrench to increase leverage, which increases the applied torque; however, this can be hazardous as it might break the bolt if too much force is applied.
The concept of torque is essential in this context. Torque, denoted by the symbol τ, is the measure of the force that causes an object to rotate about an axis. It is calculated as the product of the force applied perpendicular to the lever arm (distance from the pivot point) and the lever arm itself. For example, if you push perpendicularly on a wrench with a force of 165 N at a distance of 0.140 m from the center of the bolt, the torque you exert is 165 N times 0.140 m, which equals 23.1 N.m.