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2.3 Forces and Newton's laws

2.3 Forces and Newton's laws

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Question 35

Particles A and B, of masses 4 kg and 6 kg respectively, are connected by a light inextensible string on a smooth horizontal surface. A horizontal force of 50 N acts on B. A second horizontal force of 10 N acts on A in the opposite direction.

a.

Find the acceleration of the system.

[3]
b.

Find the tension in the string.

[3]
c.

State the force that forms a Newton's third-law pair with the force exerted by the string on A.

[1]
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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