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2.3 Forces and Newton's laws

2.3 Forces and Newton's laws

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Question 28

A block of mass 10 kg is pulled along a rough horizontal floor by a horizontal force of 25 N. The coefficient of friction is 0.2. Take g=9.8g=9.8g=9.8 m s−2^{-2}−2.

a.

Find the normal reaction.

[1]
b.

Find the friction force.

[1]
c.

Find the acceleration of the block.

[2]
Markscheme

2.3 Forces and Newton's laws Questions

  1. A Level
  2. /Maths
  3. /2.3 Forces and Newton's laws

136 exam-style questions on CCEA A Level Maths 2.3 Forces and Newton's laws, covering 2.3.1 Forces and Newton's laws, 2.3.2 Forces and Newton's laws, 2.3.3 Forces and Newton's laws, 2.3.4 Forces and Newton's laws, 2.3.5 Forces and Newton's laws, 2.3.6 Forces and Newton's laws, 2.3.7 Forces and Newton's laws, 2.3.8 Forces and Newton's laws, 2.3.9 Forces and Newton's laws, 2.3.10 Forces and Newton's laws, 2.3.11 Forces and Newton's laws, 2.3.12 Forces and Newton's laws, and 2.3 Forces and Newton's laws. Each one has a worked solution and a mark scheme showing where the marks go.

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