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# M2 Edexcel work Watch

1. When a particle is being pulled up a rough slope, is the total work done (wd) equal to wd against friction + the wd against gravity?

And when said particle is released from rest down the same slope, is the only wd this time the wd against friction?

I am getting confused with these questions and some advice from someone who knows the syllabus would be very helpful
2. (Original post by Katiee224)
When a particle is being pulled up a rough slope, is the total work done (wd) equal to wd against friction + the wd against gravity?

And when said particle is released from rest down the same slope, is the only wd this time the wd against friction?

I am getting confused with these questions and some advice from someone who knows the syllabus would be very helpful
Work done against gravity is basically gain in GPE so when it goes down the plane it looses GPE so therefore it is work done by gravity
3. (Original post by Katiee224)
When a particle is being pulled up a rough slope, is the total work done (wd) equal to wd against friction + the wd against gravity?

And when said particle is released from rest down the same slope, is the only wd this time the wd against friction?

I am getting confused with these questions and some advice from someone who knows the syllabus would be very helpful
https://6456e412e173ed9a431ecc19d07d...M2%20Notes.pdf

If u go down to the work energy section on these notes it's got a very good method simplifies everything

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