Exam-style question
Try this first
A box is resting on a table. Draw a free-body diagram to show all the forces acting on the box. Label each force appropriately.
Model answer
What a good answer should say
- The free-body diagram should include the weight of the box acting downwards due to gravity and the normal force acting upwards from the table.
- Both forces should be equal in magnitude but opposite in direction, indicating that the box is in equilibrium.
Explanation
Why this works
This question tests the understanding of free-body diagrams and the forces acting on an object at rest. The evidence shows that the forces are balanced, which implies that the box does not move.
The conclusion is that the net force acting on the box is zero, demonstrating the principle of equilibrium.
Common mistake
No common mistake is linked to this question yet.