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nexus9112 [7]
3 years ago
10

Explain why a book placed on a table does not move?

Physics
2 answers:
N76 [4]3 years ago
5 0

Answer:

4th: "The force that the book exerts down on the table is equal to the force the table exerts upward"

Explanation:

Basically, a book on a table is balanced in terms of forces. Gravity is opposed by the table and there are no forces acting to move the book in any direction. If there was a breeze that was not strong enough to move the book, it is because the force of friction is equal to that provided by the breeze.

kifflom [539]3 years ago
4 0

Answer:

The force that the book exerts down on the table is equal to the force the table exerts upward.

Explanation:

I am 100% positive. That results in balanced forces which is why it does not move. If you did want it to move, you would apply unbalanced forces.

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Answer:

270 m/s²

Explanation:

Given:

α = 150 rad/s²

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a

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The tangential component is:

at = αr

at = (150 rad/s²)(1.30 m)

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ar = (12.0 rad/s)² (1.30 m)

ar = 187.2 m/s²

So the magnitude of the total acceleration is:

a² = at² + ar²

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