Physics 163

Unit 3: Motion in Two-Dimensions

Problem Set A

 

Problem 7:

(Referring to the previous problem.) What is the magnitude of the resultant displacement (in meters) in a situation in which the 64.8 m walk is in the direction opposite the 46.1 m walk?

 

 TIP:

The addition of two vectors which are directed in the opposite direction is a simple task. A quick diagram of the two vectors should help you get started. You may draw either vector first and add the second to it with the opposite direction. If you are still having difficulties, then you ought to view the clever online animation at the Multimedia Physics Studios. If you do, observe how the angle between the two vectors effects the magnitude of the restultant.

 

  

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