Physics Trick: 20 Meters Distance but Zero Displacement! | IB/GCSE/AP Physics!

The 3 second rule could save your HGV test 🚛 ❌ Most learners sit way too close to the car in front ❌ Or they guess the gap instead of counting ❌ Or they forget to check speed while focusing on distance Here's what examiners actually want 👇 🔹 Pick a sign or marker ahead 🔹 When the car passes it start counting 🔹 1 1002 1003 1004 🔹 You need at least 3 seconds gap 🔹 4 seconds gives you time to read the road ahead 🔹 More gap equals more planning time 👀 Examiners watch your eyes not just your