Which Determines Acceleration: Torque or Power?

[McValerie]

When it comes to initial acceleration, the decisive parameter is torque. Horsepower often determines the top speed. The relationship between torque and horsepower (power) is that under fixed power conditions, torque is inversely proportional to engine speed. This means that at a certain speed, the greater the torque, the more power can be unleashed. Relevant information about automotive power is as follows: 1. Introduction: Automotive power refers to the work done by a car per unit of time, and power is the work done by an object per unit of time. The greater the power, the greater the torque, and the higher the car's pulling force. Maximum power is commonly used to describe a car's dynamic performance. 2. Maximum Power: It is usually expressed in horsepower (PS) or kilowatts (kW), with 1 horsepower equal to 0.735 kilowatts. Power is a physical quantity that indicates how fast an object does work. In physics, power P = work W / time t, and the unit is watt (W).