Physics 163

Unit 2: Newton's Laws of Motion

Problem Set B

Problem #6:

While decorating her apartment, Julie pushes a 2455.1-N dresser across the floor by applying a 3244.7-N horizontal force. If the coefficient of friction between the dresser and the floor is 0.728, then determine the acceleration (in m/s/s). (Enter your answer, accurate to the third decimal place.)

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

General information about Set B concepts and principles can be found on the Set B Overview page.

The task of constructing a free-body diagram for a physical situation is discussed in detail at The Physics Classroom.

The task of determining an accleration value if given values of individual forces is discussed in detail at The Physics Classroom.

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