Physics 163

Unit 2: Newton's Laws of Motion

Problem Set C

Problem #17:

A 628-Newton force is applied to a 704-Newton object to slide it across a rough surface having a coefficient of friction of 0.482. Determine the acceleration (in m/s/s) of the object.

• 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
• Identify an appropriate formula to use
• Perform step-by-step algebraic manipulations

The task of determining an acceleration value if given information about the mass and individual force values is discussed in detail at The Physics Classroom.

The relationship between the coefficient of friction and force of friction is discussed in detail at The Physics Classroom.

The relationship between mass and the force of gravity is discussed in detail at The Physics Classroom.

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

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