1-D Projectile Motion [IB Physics SL/HL]

This video explores one-dimensional projectile motion from Theme A of the IB Physics SL & HL courses. It reviews the equations for uniform acceleration and introduces an approach to solving questions where an object is moving vertically under the influence of gravity. This approach is then demonstrated through the solving of worked examples of one-dimensional projectile motion, with emphasis on the need for a sign convention for situations where there is a change of direction.

0:00 Introduction
1:11 Characteristics of trajectory
3:41 Worked examples
8:29 Effect of air resistance
10:08 Summary

More IB Physics Videos & Exam Questions can be found at:
Revision Village - IB Physics

[shreyask-wx]

I have a small doubt that's been stuck in my head for a while. When do we keep a=+9.8 and when do we keep a=-9.8