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# M2 Paper Testers Watch

1. I have produced a mechanics 2 mock paper and was wondering if anyone is willing to test it to compare answers.

Many thanks,
Cryptokyo
Attached Images
2. M2 Paper.pdf (547.5 KB, 76 views)
3. (Original post by Cryptokyo)
I have produced a mechanics 2 mock paper and was wondering if anyone is willing to test it to compare answers.

Many thanks,
Cryptokyo
Nice try. A few points:

Although people may not realise it, mechanics questions are very carefully worded.

Q1. As long as the car isn't slipping, is irrelevant. The car does no work against the frictional force since the wheels are turning.

Q3. Suffers a similar problem.

Q4. Seems to generate some very large numbers and part b) looks to involve solving a cubic - not checked it in detail.

Q5. Beam needs to be "freely hinged" to the lamp post.

Q7. Your f and h should be to the bottom of the ball, not the midpoint.

Q8.c) Are the strings vertical?

Not worked through the actual questions in detail.
4. (Original post by ghostwalker)
Nice try. A few points:

Although people may not realise it, mechanics questions are very carefully worded.

Q1. As long as the car isn't slipping, is irrelevant. The car does no work against the frictional force since the wheels are turning.

Q3. Suffers a similar problem.

Q4. Seems to generate some very large numbers and part b) looks to involve solving a cubic - not checked it in detail.

Q5. Beam needs to be "freely hinged" to the lamp post.

Q7. Your f and h should be to the bottom of the ball, not the midpoint.

Q8.c) Are the strings vertical?

Not worked through the actual questions in detail.
Thank you very much for your comments. I have adjusted the wording of certain questions and the diagrams in response to your comments. In regards to question 3, I have changed it from a ball to a particle that travels along the bench so now friction can be calculated.

In question 4 a cubic is generated but can be taken out as a factor. The numbers are large, but not crazy, and give nice solutions.

Overall, thank you very much!
5. isnt Q2 an M3 problem?
6. An updated version of the paper.
Attached Images
7. M2 Paper v2.pdf (544.1 KB, 67 views)
8. (Original post by sainsburys wraps)
isnt Q2 an M3 problem?
Centre of mass of a lamina can be and is asked in Mechanics 3 but it is more common in M2. This is an M2 equivalent of the question asked in an M3 paper.

There is a fair bit of overlap of M3 and M2. For example, centre of mass of a lamina is in both and calculations involving projectile motion is expected in both. But of course M3 goes a bit crazier...

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