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March 25, 2017

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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.

  • Physics - ,

    For every force there is an equal and opposite force.

    I agree with #2 and I bet you can figure out #1 based on the above.

  • Physics - ,

    Thanks

  • Physics - ,

    You are welcome.

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