A car is moving at a constant speed of 20 ms-1. The force retarding its motion is 500 N. Calculate the engine power of the car required to maintain the motion.
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Well, you must be really revved up to know the engine power of the car! Let's rev our brains, shall we?
To calculate the engine power, we can use the formula:
Power = Force x Velocity
Substituting the given values:
Power = 500 N x 20 m/s
So, the engine power of the car required to maintain its motion is 10,000 watts, or 10 kW.
Keep in mind that this calculation is just the engine power required to overcome the retarding force. It doesn't take into account other factors that affect a car's performance, like friction, road conditions, or how awesome the driver's playlist is.
To calculate the engine power required to maintain the motion of the car, we can use the formula:
Power = Force × Velocity
Given:
Force (F) = 500 N
Velocity (v) = 20 m/s
Substitute the values into the formula:
Power = 500 N × 20 m/s
Multiply the force and velocity:
Power = 10,000 N⋅m/s
The unit of power is watts (W). Therefore, the engine power required to maintain the motion of the car is 10,000 watts or 10 kW.
To calculate the engine power required to maintain the motion of the car, we need to use the formula:
Power = Force × Velocity
Given that the force retarding the car's motion is 500 N and the speed of the car is 20 m/s, we can substitute these values into the formula:
Power = 500 N × 20 m/s
Power = 10000 N⋅m/s
However, we still need to convert the units N⋅m/s to a more commonly used unit for power, such as watts (W). We can use the conversion factor:
1 W = 1 N⋅m/s
Therefore, the engine power required to maintain the motion of the car is:
Power = 10000 W