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3.5 Newton's Laws of Motion

3.5 Newton's Laws of Motion

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Question 16

Two blocks of masses 4 kg and 6 kg are in contact on a smooth horizontal surface. A horizontal force of 35 N is applied to the 4 kg block, pushing both blocks.

a.

Find the acceleration of the blocks.

[2]
b.

Find the magnitude of the contact force between the blocks.

[2]
c.

Explain why the contact force is internal when the two blocks are treated as one system.

[1]
Markscheme

3.5 Newton's Laws of Motion Questions

  1. A Level
  2. /Maths
  3. /3.5 Newton's Laws of Motion

49 exam-style questions on OCR (MEI) A Level Maths 3.5 Newton's Laws of Motion, covering 3.5.1 Meaning of Newton's three laws, 3.5.2 Equation of motion, 3.5.3 Equation of motion for a particle in a straight line, 3.5.4 Model a system of connected particles, 3.5.5 Equations of motion for individual particles, 3.5.6 System with no relative motion as a single particle, and 3.5.7 Equation of motion in a straight line or plane (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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