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Torque exerted by and Car engine

Student 5051 9 years ago updated by Physics Tutorial Center Staff 9 years ago 1

The maximum torque produced by the 5.4-L V8 engine of a 2005 Ford GT is 678 N*m of torque at 4500 rev/min. Find the power output of the engine operating at these maximum.


I feel like I can plug in P = tw where t is 678 N*m and w is 4500 rev/min but I get the wrong answer. Why is that?

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Did you keep track of the units? rev/min is not in SI units, while N*m is. If you merely multiplied 678 by 4500, this would not work in Web Assign.