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# Help UNIT 1 MECHANICS QUESTION

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1. One side of a mountain slopes at 35° to the horizontal and the other side at 25°. A geologist needs to climb to the top to collect rock samples.

By discussing the work done and forces involved, explain which would be the easier sideto use to climb to the top. vertical height of mountain = 365 m mass of geologist = 85 kg

My question is, is the force I'm going to find Horizontal,vertical or Diagonal ?
2. This question is about the component of gravitational force down the slope being different due to the varying angle. If the slope was vertical the force would be mg, if horizontal it would be 0. At the angles in between it is mg cos x. where x is the angle to the vertiacl and so here we either do 90- the angle or use sin instead.

It is not a clear question about what they want but that is the wooly nature of A-level Physics these days
3. (Original post by nerak99)
This question is about the component of gravitational force down the slope being different due to the varying angle. If the slope was vertical the force would be mg, if horizontal it would be 0. At the angles in between it is mg cos x. where x is the angle to the vertiacl and so here we either do 90- the angle or use sin instead.

It is not a clear question about what they want but that is the wooly nature of A-level Physics these days
Alright thanks so the force was inclined and I had to find the vertical component of it.

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