Practice Equilibrium in Physics

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

A state in which all forces acting on an object balance so that the net force equals zero and there is no acceleration.

All forces cancel out — the object doesn't accelerate, though it may still be moving at constant velocity.

Example 1

easy
A 25 \text{ N} lamp hangs from a single vertical cord. What is the tension in the cord?

Example 2

hard
A 50 \text{ N} sign hangs from two cables, each making a 30° angle with the horizontal. What is the tension in each cable?

Example 3

medium
An object is in equilibrium under three forces: F_1 = 10 \text{ N} east, F_2 = 10 \text{ N} north. What is the magnitude and direction of the third force F_3?

Example 4

easy
A 40 \text{ N} sign is held at rest by two vertical supports. One support pulls upward with 25 \text{ N}. What upward force must the second support provide for equilibrium?
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