A CAR TRAVELLING AT 30M/S Overcome A FrictionAlly Resistance Of 100N While Moving.What Is The Power Of The Engine(Take 1 Hp=3/4 Kw)
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power=force*velocity=100*30
if you want it in HP, then divide by 750
To calculate the power of the engine, we need to use the formula:
Power = Force * Velocity
In this scenario, the force is the frictional resistance the car overcomes and the velocity is the speed at which the car is traveling. The given values are:
Force = 100 N
Velocity = 30 m/s
Now, we can substitute these values into the formula to find the power:
Power = Force * Velocity
Power = 100 N * 30 m/s
Multiplying these values, we get:
Power = 3000 N*m/s
To convert this to a more commonly used unit of power, such as kilowatts (kW), we can use the conversion factor given:
1 horsepower (hp) = 3/4 kilowatts (kW)
So, we can divide the power by the conversion factor to convert it to kilowatts:
Power in kW = Power in N*m/s / (3/4 kW/hp)
Power in kW = 3000 N*m/s / (3/4 kW/hp)
Dividing these values, we get:
Power in kW = 4000 kW
Therefore, the power of the engine is 4000 kilowatts (kW).