Question

A book that weighs 20 N sits on a table. How big and in what direction does the force of gravity from the Earth act on the book?

Answer 1

The answer to the first question is A

W = ma
20 N = m (9.8)
M = 20/9.8
M = 2.04
Fg=mg
Fg= 2.04 x 9.8
≈ 20 N [down]

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Answer 2

Answer:

1. A

2. C

3. A

4. D

5. A

6. B closer to 4 than 3

7. A

8. C

9. A

10. C

11. C