Physics 163

Unit 5: Work, Energy and Power

Problem Set A

Problem 6:

A 379.2 gram squirrel does 43 pushups, displacing itself by a distance of 11.9 cm for each pushup. Determine the total work (in Joules) done on the squirrel while moving upward. (Enter your answer accurate to the third decimal place. Avoid rounding until the end.)

• Read the problem carefully and diagram the physical situation
• Identify known and unknown information in an organized manner
• Take the time to plot out a strategy prior to beginning the solution
• Identify an appropriate formula to use
• Perform step-by-step algebraic manipulations

Work, energy and power concepts can be reviewed on the Set A Overview page.

Further information about the concept of and equation for work is available online at The Physics Classroom.

Further information about the mass-weight relationship is available online at The Physics Classroom.

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