4. 2D Kinematics

Intro to Motion in 2D:Position & Displacement

Intro to Motion in 2D: Position & Displacement

Displacement in 2-D

2D Position

The position of a squirrel running in a park is given by r = [(0.280 m/s)t + (0.0360 m/s2)t2]î + (0.0190 m/s3)t3ĵ. (b) At t = 5.00 s, how far is the squirrel from its initial position?

<p>At point A, a hiker is 10m east from the origin. After 35s, the hiker arrives at point B 40m at 60° north of east from the origin. Calculate the magnitude and direction of the hiker’s displacement.</p>

Final Position Vector

 There is not enough information to answer this question. 

 Three footballs are punted into the air at <math display="inline"><mrow><mn>32</mn><mo rspace="thickmathspace">&#x2062;</mo><mrow><mi mathvariant="normal" class="MathML-Unit">m</mi><mo>/</mo><mi mathvariant="normal" class="MathML-Unit">s</mi></mrow></mrow></math>. Ball A has a launch angle of 34°, Ball B has a launch angle of 41°, Ball C has a launch angle of 57°. Which ball has the longest hang time?  In other words, which ball is in the air for the longest time? 

2D Displacement

Two-Dimensional Motion and Displacement | Physics with Professor Matt Anderson | M4-01

Anderson Video - 2D Motion and Displacement

Intro to Motion in 2D

Position and Displacement in 2D

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