A Car Engine Supplies 2.0 x 10^3 J of Energy to the Drive Shaft

Introduction

A car engine is a complex machine that converts the chemical energy stored in gasoline into mechanical energy that can be used to propel the vehicle. The engine does this by burning gasoline in a series of cylinders, which creates expanding gases that push on pistons. The pistons are connected to a crankshaft, which converts the linear motion of the pistons into rotational motion. The rotational motion of the crankshaft is then used to drive the transmission, which in turn drives the wheels.

The Energy Supplied by the Engine

The amount of energy that an engine supplies to the drive shaft is determined by the engine’s power and the amount of time that the engine is running. Power is measured in watts, and it is equal to the rate at which work is done. The work done by the engine is equal to the force that the engine applies to the drive shaft multiplied by the distance that the drive shaft moves. The amount of time that the engine is running is measured in seconds.

In this problem, we are given that the engine supplies 2.0 x 10^3 J of energy to the drive shaft. We are also given that the engine is running for 10 seconds. Therefore, the power of the engine is:

Power = Work / Time

Power = 2.0 x 10^3 J / 10 s

Power = 200 W

The Efficiency of the Engine

The efficiency of an engine is a measure of how well the engine converts the chemical energy stored in gasoline into mechanical energy that can be used to propel the vehicle. The efficiency of an engine is calculated by dividing the power output of the engine by the power input of the engine. The power input of the engine is equal to the rate at which gasoline is burned in the engine. The power output of the engine is equal to the power that the engine supplies to the drive shaft.

In this problem, we are not given the efficiency of the engine. However, we can estimate the efficiency of the engine by assuming that the engine is a typical gasoline engine. The efficiency of a typical gasoline engine is about 25%. Therefore, the efficiency of the engine in this problem is estimated to be:

Efficiency = Power output / Power input

Efficiency = 200 W / 800 W

Efficiency = 25%

Conclusion

In this problem, we have calculated the power and efficiency of a car engine that supplies 2.0 x 10^3 J of energy to the drive shaft. We have found that the power of the engine is 200 W and the efficiency of the engine is 25%. These values are typical for a gasoline engine.