(main)[6]
Find the least possible value of $P$.
Mathematics 9709 · AS & A Level · Forces and equilibrium
Forces and equilibrium — practice question
A particle of mass $0.6\,\text{kg}$ rests on a rough plane inclined at $35^\circ$ to the horizontal. It is held in equilibrium by a horizontal force of magnitude $P\,\text{N}$ acting in a vertical plane that contains a line of greatest slope (see diagram). The coefficient of friction between the particle and the plane is $0.4$.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “An attempt to resolve forces either parallel to or perpendicular to the plane” …
- Full mark scheme, point by point
- Step-by-step worked solution
- Write your answer & get it marked instantly by AI