What is the concept of a 400-horsepower car?

A car with 400 horsepower means 400 * 735.5 = 294,200 watts.

/kloc-In the late 8th century, British physicist Watt (1 736-1819) defined horsepower as the work of lifting a weight of 1000 pounds by 33 feet in1minute, which is English horsepower.

The horsepower of a car refers to the unit power of the engine, that is, the functional power of the engine in unit time.

Power is calculated according to torque.

Calculation formula: power (w) = 2π× torque (N-m)× speed (rpm)/60;

After simplified calculation, it becomes: power (kW)= torque (N-m) × rotational speed (rpm)/9549.

Extended data:

Maximum horsepower (Ps) refers to the maximum power output that a car can achieve. The unit of Ps is the same as the maximum power data. Power refers to the work done by an object in unit time. The greater the power, the higher the speed and the higher the maximum speed of the car. Maximum power is often used to describe the dynamic performance of a car.

Maximum horsepower affects the top speed of the car, while torque affects the strength of the car during acceleration, including starting. Theoretically, the greater the torque, the faster the starting speed and the shorter the time from 0 to the highest speed. If the horsepower is high and the torque is not high, the speed will be slow, which will make the driver feel powerless.

It is the same meaning to use Ps as the unit of horsepower and the maximum power data.

Power refers to the work done by an object in unit time. The greater the power, the higher the speed and the higher the maximum speed of the car. Maximum power is often used to describe the dynamic performance of a car.

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