# Gravity and Projectile Motion

## Simulating Gravitational Attraction

See your handout for guidance but this link will help us explore the law of gravitation.
Bullet Fired vs. Bullet Dropped (Part 1).mov
Bullet Fired vs. Bullet Dropped (Part 2).mov
Bullet Fired vs. Bullet Dropped (Part 3).mov
Bullet Fired vs. Bullet Dropped (Part 4).mov
Bullet Fired vs. Bullet Dropped (Part 5).mov

## The Law of Gravitation

Newton's Law of Gravitation accounts for the effect between two masses and the distance between those masses. Some things to note: masses must be in kilograms and the distance between the two masses must be in meters (m). There will be scientific notation numbers to work with so remember to use the EE or EXP on your calculator.

## Simulating Projectile Motion

Your handout will guide you but this link will help us explore projectile motion. For example, what determines "hang time", range, and the height of the projectile?

## Formulas for projectile motion

In most cases of projectile motion, one component of the velocity (horizontal or vertical) does not change. This makes solving the problems much easier. To the left you will find the basic formulas needed (there are two) and neither one of these is new to us.