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Forces and Newton's Laws of Motion Answers to Question 2B

| Saturday, September 8, 2012

The forces are acting at perpendicular directions, as seen below.



If we use a vector diagram, we get the following:



Using the Pythagorean theorem,


F^{2}=(1.0 N)^{2} + (1.5 N)^{2}


F^{2}=3.25 N^{2}


F=\sqrt{3.25}N


F=1.80 N


Then the angle (which tells us the direction) can either be calculated or measured. If measure, the angle will be around 55 degrees to the left of the boy.



Forces and Newton's Laws of Motion Answers to Question 2B

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