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Dahasolnce [82]
3 years ago
12

Student A states that when she sits down on a chair, she is exerting a force on the chair and that is all that happens. Student

B states that when she sits on a chair, the chair is actually exerting a force back on her in reaction to her force exerted upon the chair. Which student is correct and why?
A.
Student A is correct because Newton’s 1st Law of Motion states that if the chair exerted a force on the student, her motion would change.

B.
Student A is correct because Newton’s 3rd Law of Motion states that for every action there is an equal and opposite action and the chair does not show any action.

C.
Student B is correct because Newton’s 1st Law of Motion states that if the chair were to be exerting a force on the student, her motion would change.

D.
Student B is correct because Newton’s 3rd Law of Motion states that for every action there is an equal and opposite action and the chair’s action counteracts the student’s so that neither move.
Physics
1 answer:
zvonat [6]3 years ago
7 0

Answer:

C

Explanation:

I got it right on the test !!

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<u>Answer</u>

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Since the car was travelling at 37ms^{-1} before it starts to decelerate, the initial velocity is

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The time taken is t=15s.

Using the Newton's equation of linear motion,

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This implies that,

0=37 +a(15)

This gives us,

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We divide both sides by 15 to get,

a=-\frac{37}{15}ms^{-2}

or

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