16/06/2026
This is one of the most common mistakes A Level Mechanics students make, and it can cost easy marks in exams.
Do you ever forget whether to use sin θ or cos θ when resolving forces?
You're not alone.
In this reel, I'll show you one simple trick that makes resolving forces much easier to remember.
Comment "M1" if you've ever mixed up sine and cosine.
Save this reel for your Mechanics revision.
Share it with a friend who studies A Level Maths.