What is the Relationship Between Car Torque and RPM?

[Avery]

The relationship between car torque and RPM is that the product of torque and RPM multiplied by a constant k equals power. When the power is constant, RPM and torque are inversely proportional. Torque represents force, while RPM represents speed. Greater torque means more force, whereas higher RPM only indicates speed. Greater force allows screws to be tightened more securely, and higher RPM enables faster speeds, provided that the torque can overcome the resistance to speed increase until torque and resistance balance out, achieving stability. Variable frequency speed regulation of motors affects torque: at high speeds, power increases while torque decreases; at low speeds, torque increases while power decreases. Medium-frequency motors perform poorly at low speeds but perform well at high speeds.