# HP Cycle 14

## 11/29 - 12/2

M 11/29

T 11/30

W 12/1

Th 12/2

### 🟢 6: M 11/29, 🔵 8: M 11/29 - Newton's 3rd Law

Today, we will start to explore Newton’s Third Law through interactive lecture and demonstrations. The law states, “If two bodies interact, the magnitude of the force exerted on object 1 by object 2 is equal to the magnitude of the force simultaneously exerted on object 2 by object 1, and these two forces are opposite in direction.” The important thing to remember is that action-reaction forces act on different objects!

Presentation: Newton's 3rd Law Presentation
Homework: Watch the following videos as a review of Newton's 3rd Law:

### 🟩 6: W 12/1, 🟦 8: T 11/30 - two block systems

Today, we'll start by doing a problem with an applied force on a system of two blocks. Remember, when we have two blocks, then we can draw a free body diagram of each object as well as draw a third free body diagram of the system as long as both objects have the same acceleration.

Then, we'll look at what a pulley does... basically it changes the direction of the force. Here, we'll start looking at Newton's 2nd Law problems with more than one object in the system. We'll have to write a ΣF statement for each object as well as the total system.

Presentation: Two Block Systems
Homework
: Look over your notes from today's Pear Deck, watch the videos below:

### 💚 6: Th 12/2, 💙 8: W 12/1 - pulley problems

Today, we'll look at what a pulley does... basically it changes the direction of the force. Here, we'll start looking at Newton's 2nd Law problems with more than one object in the system. We'll have to write a ΣF statement for each object as well as the total system. Then, we'll work on page 5 of Big Newton's Law Packet. (SOLUTIONS to whole packet)

We'll then solve "table top pulley problems" with #1-2 in Table Top Pulley Problems, Solutions #1-2.

Optional Challenge Problems: Two Block Problems #1, 2, and 4. SOLUTIONS

Homework: QUIZ on Friction next class - Friday, December 3rd. Finish #1-2 in Table Top Pulley Problems, Solutions #1-2. If you need support, watch the videos below (repost):