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Hang a pen by a piece of string. 1.Is the pen at rest or in motion, explain.2.are there forces acting of the pen?explain.cut the string with a pair of

scissors3.what happens to the pen?what could have caused the pen's motion?explain.place a book on the top of a table4.is the book at rest, or in motion?explain.5.are there forces acting on the book?explain.


The pen is in motion.. There are forces acting on it, gravitational and normal force. The pen fell, idk.. The book is at rest. There are forces acting on a book, gravitational ( there are others but I don't remember, sorry)
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