Physics 163

Unit 5: Work, Energy and Power

Problem Set B

 

Problem 8:

Mr. Henderson's Fiat is in the auto shop. A machine does 12418 Joules of work to hoist the car up to a height of 1.57 meters. Determine the mass (in kg) of the Fiat. 

 

 

 

Use the equation below to solve this problem. Cancel terms, substitute and solve.

 KEi + PEi + Wnc = KEf + PEf

 

Work and energy principles and mathematical relationships can be reviewed on the Set B Overview page.

Further information about the equation for potential energy is available online at The Physics Classroom.    

Further information about the work and energy relationship is available online at The Physics Classroom.    

 

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