OUTCOME
By the end of the lesson you will be able to apply the constant acceleration and motion formulas to solve projectile motion problems
Engage
Objects dropped fall under constant acceleration.
A projectile acts under gravity as soon as it leaves the projection system. In many cases air resistance can be considered as negligible enabling us to model the path of the projectile a as parabola.
LEARNING TASKS
Explain
1. Looking at the strobe video, what happens to the droplet after each flash.
2. Why do the drops appear not to be moving?
A strobe works by have a flash at set times this needs to be matched to the rate at which the drops are formed.
Explore and Elaborate
Use the suvat formulas to determine how fast a droplet must be travelling when it is 20 cm from the tap?
Activity: Use tracker to examine a falling ball
Choose the file Which lands first? from the mechanics folder
Next lesson