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# Mechanics 1 frictional force questions (Mechanics help) watch

1. A horizontal force of magnitude 20N acts on a block of mass 1.5kg, which is in equilibrium restion on a rough plane inclined at 30 degrees to the horizontal. The line of action of the force is in the same vertical plane as the line of greatest slope of inclined plane.
a) find the magnitude and direction of the frictional force acting on the block
b) find the normal reaction between the block and the plane
c) What can you deduce about the coefficient of friction between the block and the plane?

I dont necesarily want the answer to this question, I just want a step-by-step method of which I can use to approach questions like these. If I remember the steps I should be able to apply this to any question similat.
This question is from the M1 Edexcel book
2. (Original post by Abismuth)
A horizontal force of magnitude 20N acts on a block of mass 1.5kg, which is in equilibrium restion on a rough plane inclined at 30 degrees to the horizontal. The line of action of the force is in the same vertical plane as the line of greatest slope of inclined plane.
a) find the magnitude and direction of the frictional force acting on the block
b) find the normal reaction between the block and the plane
c) What can you deduce about the coefficient of friction between the block and the plane?

I dont necesarily want the answer to this question, I just want a step-by-step method of which I can use to approach questions like these. If I remember the steps I should be able to apply this to any question similat.
This question is from the M1 Edexcel book
If you work out how to solve this one yourself, it will help greatly for learning how to do it and apply it to not only similar questions but more difficult questions as well, though I don't think inclined plane questions get that much difficult.

First step for a lot of mechanics questions is to draw a diagram - have you done so?

Which way is the frictional force acting and is can you resolve to find it?
3. (Original post by SeanFM)
If you work out how to solve this one yourself, it will help greatly for learning how to do it and apply it to not only similar questions but more difficult questions as well, though I don't think inclined plane questions get that much difficult.

First step for a lot of mechanics questions is to draw a diagram - have you done so?

Which way is the frictional force acting and is can you resolve to find it?
Yeh, I drew a diagram and figured it out from there. You have to resolve the forces which are on a parallel plane.
Thanks for the reply and sorry for the delay in my reply, been at college all day.

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