**Unit 3: Motion in Two
Dimensions**

**Problem Set B**

**Problem 8:**

(Referring to the previous problem.) What will be the airplane's speed (in km/h) relative to the ground?

- 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

A discussion of the principlesof relative motion and of the basic strategy for solving such problems is provided on the Set B Overview Page.

Detailed information about and discussion of the strategies for solving riverboat problems and other relative velocity problems is provided online at The Physics Classroom.

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