Wednesday
August 20, 2014

Homework Help: Physics

Posted by Sally on Friday, March 1, 2013 at 7:49pm.

1)The Earth exerts an 710 N gravitational force
on a man.
What force does the man exert on the
Earth?
Answer in units of N

2)If a book is sitting on a table, the force of
gravity pulls it down.
Why doesn’t it fall?
Is it because The table is pushing up on it with a force
equal to the weight of the book.

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