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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 32

A car of mass 1200 kg moves along a straight horizontal road.

The engine of the car produces a constant driving force of 2000 N, and the total resistance to the motion of the car is constant and of magnitude 800 N.

a.

Find the acceleration of the car.

[2]
b.

The car starts from rest. Find the speed of the car 15 seconds later.

[2]
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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