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3.4 Forces

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Question 13

In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2.

A block of mass 5 kg rests on a rough horizontal plane. The coefficient of friction between the block and the plane is 0.3.

Find the magnitude of the maximum possible frictional force acting on the block.

Circle your answer.

A

1.47 N

B

14.7 N

C

49 N

D

163 N

Markscheme

3.4 Forces Questions

  1. A Level
  2. /Maths
  3. /3.4 Forces

87 exam-style questions on OCR (MEI) A Level Maths 3.4 Forces, covering 3.4.1 Language relating to forces, 3.4.2 Acceleration due to gravity, 3.4.3 Identify forces and draw force diagrams, 3.4.4 Resultant of concurrent forces, 3.4.5 Equilibrium of a particle, 3.4.6 Resolve a force into components (A-level only), 3.4.7 Equilibrium condition for resultant zero (A-level only), 3.4.8 Forces in equilibrium sum to zero (A-level only), 3.4.9 Equations for a particle in equilibrium (A-level only), 3.4.10 Frictional force and normal contact force (A-level only), 3.4.11 Model friction with F ≤ μR (A-level only), and 3.4.12 Apply Newton's Laws to friction problems (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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