Just knowing these conditions does not allow you to calculate the number of kilometers you can travel.
Suppose the speed of the battery car is 20 kilometers per hour and it can travel 28.8 kilometers.
The calculation method is as follows:
Battery capacity = 72×30×3600=7776000 (Joules)
P=W/T, T=W /P= 7776000÷1500=5184 (seconds)
5184÷3600×20=28.8 (km)
Information detailed:
Electric power is a physical quantity used to express the speed of consumption of electrical energy. It is represented by P. Its unit is the Watt (Watt), called ". Watt", and its symbol is W.
The capacity of the battery is equal to the voltage of the battery multiplied by the amp-hours, then multiplied by 3600, which is the number of joules. This number of joules corresponds to the storage capacity of the battery.
Asas a physical quantity which represents the speed of the current carrying out work, the power of an electrical device is numerically equal to the electrical energy it consumes in 1 second. If electrical energy "W" (SI unit is J) is consumed over a period of time as long as "t" (SI unit is s), then the electrical power of this electrical appliance is P = W /t (definition formula). The electrical power is equal at both ends of the conductor. The product of voltage and current flowing through a conductor.
The stored battery energy divided by the motor power equals the time T during which the battery can continue to provide energy. This time T, multiplied by the speed of the battery car, is. distance the battery car can travel.
Every electrical appliance has a normal operating voltage called rated voltage. The power of the electrical appliance that operates normallyat the rated voltage is called the rated power. is called the real power.
Baidu Encyclopedia-Electric Power