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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 particle A of mass 3 kg lies on a smooth horizontal table and is connected by a light inextensible string over a smooth pulley to a hanging particle B of mass 2 kg. The system starts from rest. After 2 s the string breaks. Take g=9.8g=9.8g=9.8 m s−2^{-2}−2.

a.

Find the acceleration before the string breaks.

[3]
b.

Find the speed of A when the string breaks.

[2]
c.

Find the total distance travelled by A in the first 5 s.

[3]
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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