Question

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.

Answer 1

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.

Answer 2

Thanks

Answer 3

You are welcome.