Statics of a particle
Resolve forces in equilibrium using triangle of forces and Lami's theorem; friction problems
What you'll learn
- 1
Imagine a box sitting still on a table 🎁. It's not moving because the table pushes up with the same force that gravity pulls down.
- 2
What does it mean when a box is in equilibrium?
- 3
A 5kg weight hangs from a rope. Gravity pulls down with 50N. The rope pulls up. Let's find the tension.
- 4
A 3kg box sits on a table. Gravity pulls down with 30N. Drag the arrow to show the upward force from the table.
- 5
A 2kg book is at rest on a desk. Gravity is 20N. What is the size of the upward force from the desk?
- 6
Two ropes hold a sign. One pulls left with 30N. The sign is still. Find the other rope's pull.
- 7
A particle is at rest. A force of 12N acts to the right. What force must act to the left for it to stay still?
Practise Statics of a particle with Whizlo
Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 16–18. Aligned to the UK National Curriculum.