Physics 163

Unit 2: Newton's Laws of Motion

Problem Set C

Problem #16:

A 68.2-kg falling skydiver is encountering 832 N of air resistance at a given moment during her fall. Determine the accceleration (in m/s/s) of the skydiver. If downward, then enter a negative answer.

• 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 audio help for problem 16 is identical to the one for problem 15.

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.

Detailed information about physical situations involving air resistance forces are provided 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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