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Physics 7 Online
OpenStudy (anonymous):

7. A book stays at rest on the table. What are the most relevant forces that are acting on the book? (a) Force of gravity alone (downward). (b) Force of gravity (down) and the force by the table (up). (c) Force of gravity (down), the force by the table (up) and, the resultant force of atmospheric pressure downward. (d) Force of gravity (down), the force by the table (up) and, the resultant force of atmospheric pressure upward. (e) None of the previous holds true because while the book stays at rest on the table then no force is acting on it. Give reason for your answer.

OpenStudy (ash2326):

|dw:1330530358205:dw| Fg=Ft Fg= force due to gravity Ft= Force due to table Net force=0 so the book is at rest. Can you tell now, What's the answer?

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