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3.3 R: Forces and Newton's laws

3.3 R: Forces and Newton's laws

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Question 17

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

3.3 R: Forces and Newton's laws Questions

  1. A Level
  2. /Maths
  3. /3.3 R: Forces and Newton's laws

139 exam-style questions on AQA A Level Maths 3.3 R: Forces and Newton's laws, covering 3.3.1 Concept of a force and Newton's first law, 3.3.2 Newton's second law, 3.3.3 Weight and motion under gravity, 3.3.4 Newton's third law and equilibrium, 3.3.5 Addition of forces and resultants (A-level only), and 3.3.6 Friction (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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