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2.2 Newton’s laws

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Question 12
H

A box of mass 10 kg is on a horizontal floor.

The table shows the forces acting on the box.

Table

ForceSize (N)Direction
Pull from a rope50right
Push from a student15right
Friction20left
Weight100down
Normal contact force100up

What is the acceleration of the box?

[1]
A

3.0 m/s23.0\ \text{m/s}^23.0 m/s2

B

4.5 m/s24.5\ \text{m/s}^24.5 m/s2

C

6.5 m/s26.5\ \text{m/s}^26.5 m/s2

D

8.5 m/s28.5\ \text{m/s}^28.5 m/s2

Markscheme

2.2 Newton’s laws Questions

  1. GCSE
  2. /Physics
  3. /2.2 Newton’s laws

50 exam-style questions on OCR GCSE Physics 2.2 Newton’s laws, covering 2.2.1 Interactions between objects, 2.2.2 Force pairs in interactions, 2.2.3 Forces as vectors, 2.2.4 Newton's first law, 2.2.5 Resolving forces with vector diagrams, 2.2.6 Forces acting on an isolated object, 2.2.7 Free body diagrams and resultant force, 2.2.8 Free body diagrams for balanced forces, 2.2.9 Newton's second law, 2.2.10 Inertia and inertial mass, 2.2.11 Momentum in collisions, 2.2.12 Relating force, mass, velocity and acceleration, 2.2.13 Work done by a force, 2.2.14 Work, stored energy and units of energy, 2.2.15 Power as the rate of energy transfer, 2.2.16 Newton's third law, and 2.2.17 Circular motion and changing velocity. Each one has a worked solution and a mark scheme showing where the marks go.

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