Results

How to solve for the horizontal displacement when the projectile starts with a horizontal initial velocity. We also explain common mistakes people make when doing horizontally launched projectile problems.

This YouTube video explains how to calculate an irregular area on a map.

This YouTube video explains how to calculate a regular area on a map.

Outcome

In this lesson you will learn about:

1. The real number system.
2. Rational and irrational numbers.
3. How to convert terminating decimals to rational numbers. 
4. How to convert recurring decimals to rational numbers.
5. Rounding off decimal numbers.

• Predict, qualitatively, how an external force will affect the speed and direction of an object's motion.
• Explain the effects with the help of a free body diagram.
• Use free body diagrams to draw position, velocity, acceleration and force graphs and vice versa.
• Explain how the graphs relate to one another.
• Given a scenario or a graph, sketch all four graphs.

This video explores the different types of numbers which exist.