Physics, 08.03.2020 02:02 ethanyayger

8. Two students are having the following conversation about a 3rd student who
is sitting at rest in their chair
Student1: There are only 2 forces acting on student 3, the normal
force and the weight force. That means that these two forces are
Newton's 3rd law pairs (equal in magnitude and opposite direction)
Student 2: I think the forces are equal and opposite directions but I
don't think they are examples of Newton's third law pair of forces. I
think they are equal and opposite by Newton's second law not
Newton's 3rd law.
Which student do you agree with and why?

9. You push on a block with a force of 10 N. You make an observation that the
block as an acceleration of 3.6 m/sec2. Calculate the mass of the block.

10. Two train cars are connected by a rope. If each train car has a mass of 3,000
kg, and the system is observed to accelerate at a rate of 100 m/sec, calculate
the force needed to make this system move.

Answers: 1

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8. Two students are having the following conversation about a 3rd student who
is sitting at re...

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