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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-9709-P4-FE-0121 markL1 FoundationCalculatorFriction
The friction force on a particle is equal to μR\mu R when the particle
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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE3-0013 marksL1 FoundationCalculatorFriction
A box of mass 88 kg rests on a rough horizontal floor with μ=0.3\mu=0.3. A horizontal force of 2020 N is applied and the box does not move. Find the maximum possible friction and the actual friction force.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE3-0022 marksL1 FoundationCalculatorFriction
A block of mass 1010 kg on a rough horizontal floor is on the point of moving when a horizontal force of 3535 N is applied. Find μ\mu.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE3-0032 marksL1 FoundationCalculatorFriction
A crate of mass 1212 kg rests on a rough horizontal floor with μ=0.25\mu=0.25. Find the least horizontal force needed to make it move.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE3-0071 markL1 FoundationCalculatorFriction
A box rests on a rough floor where the maximum friction is 3030 N. A horizontal force of 1212 N is applied and the box stays at rest. The friction force is
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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE-Q021 markL1 FoundationCalculatorFriction
Friction on a particle acts
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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE-0042 marksL2 StandardCalculatorFriction
A box of mass 55 kg rests on a rough horizontal floor with μ=0.4\mu=0.4. A horizontal force of 1515 N is applied. Find the friction force.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE-0055 marksL3 ExamCalculatorAngled forces
A block of mass 44 kg on a rough horizontal floor is pulled by a force of 3030 N at 20∘20^\circ above the horizontal. The block is on the point of moving. Find μ\mu, correct to 3 significant figures.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE3-0045 marksL3 ExamCalculatorAngled forces
A block of mass 55 kg rests on a rough horizontal floor with μ=0.4\mu=0.4. It is pulled by a force PP N at 30∘30^\circ above the horizontal and is on the point of moving. Find PP, correct to 3 significant figures.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE3-0064 marksL3 ExamCalculatorAngled forces
A block of mass 44 kg on a rough horizontal floor is pulled by a force of 2020 N at 40∘40^\circ above the horizontal. It is on the point of moving. Find μ\mu, correct to 3 significant figures.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE3-0084 marksL3 ExamCalculatorAngled forces
A sledge of mass 2020 kg rests on rough horizontal snow. It is pulled by a rope inclined at 25∘25^\circ above the horizontal with tension 6060 N, and is on the point of moving. Find the coefficient of friction, correct to 3 significant figures.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P4-FE3-0055 marksL4 ChallengingCalculatorAngled forces
A block of mass 55 kg rests on a rough horizontal floor with μ=0.4\mu=0.4. It is pushed by a force PP N acting at 30∘30^\circ below the horizontal and is on the point of moving. Find PP, correct to 3 significant figures.

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Salam Academy Original Practice · Proposed mark scheme