DAY 58

WARM-UP

A softball is thrown to the infield from the outfield at an angle of 40.0* from the horizontal, with a vi of 11.0m/s. How far will the ball travel? You have 6 minutes use sketch a pic, use GUESS, and solve. 3, 2, 1...Go.

2. Imagine you were trying to find the maximum height the softball attained - what could you add to your list of given/known info? Which equation (pull out your equation chart) would you use to solve?

CLASSWORK

1. Finding Maximum Height (ymax)

At ymax, vy = Zero

Notes: We will solve a problem together... Yay! (take notes)

2. Practice Problem Time

Solve pg 152 #4, 5, 6

3. We are skipping 6.2, so Relative Velocity is on the way manana...

1. Complete 4, 5, and 6

2. Prep for "Relative Velocity" by watching the following two videos and reading pg 157-158:

http://www.flippingphysics.com/skateboarding.html <--Andrew!!!! Show this to your tiny sk8brd!!!

http://www.flippingphysics.com/introduction-to-relative-motion.html

Q: If the velocity of the Prius was 11m/s North, and the velocity of the Minivan was 22m/s South, what would the vpm be? Show your work.

Reading Quiz 6.3 on Thursday

#Goals: SWBAT...

1. Use the word of the day in a sentence

2. Describe how momentum is transferred during a collision.

3. Measure in SI the momenta involved

4. Interpret Data from a collision.

5. Draw Conclusions that support the law of conservation of momentum.

WARM-UP & HW Check:

A. Your word of the day is: http://www.merriam-webster.com/word-of-the-day

Use it in a sentence.

B. Imagine a Big Rig hits a Prius. Who wins? Does the velocity of the Prius and/or Big Rig matter? Does the mass of the Prius and/or Big Rig matter?

C. Imagine that when they impact, the Big Rig is going North at 50mph, and the Prius is going South at 50mph. The two vehicles stick together after the collision. Which way will the stuck vehicles travel? Are you sure? How can you be so sure???

D. Find the formula and definition for Momentum. Add them to your Table of Friends

CLASSWORK:

0. Two Types of Collisions (add to your notes)

- Elastic collision. In an elastic collision, the total kinetic energy (energy from movement) in the system is the same before and after the collision. If losses to heat and deformation are much smaller than the other energies involved, such as when two pool balls collide and go their separate ways, you can generally ignore the losses and say that kinetic energy was conserved.
- Inelastic collision. In an inelastic collision, the collision changes the total kinetic energy in a closed system. In this case, friction, deformation, or some other process transforms the kinetic energy. If you can observe appreciable energy losses due to nonconservative forces (such as friction), kinetic energy isn’t conserved.

1. Momentum Lab

http://www.glencoe.com/sec/science/internet_lab/olc.php?olcChapter=809

Your Final Product:

- Word Document with:

A. Answers to each question from: Analyze, Conclude & Apply; Going Further; Real-World Physics secitions

B. Completed data table.

- fill this out on the webpage. Then use ctrl-printscreen to take a screen shot, and ctrl-v to paste the

tables on your Word document.

Tutoring available after school Mon, Tues, and Wed until 4:30. Lunch almost every day.

HOMEWORK:

1. Read pg 229-231. Reading Quiz Tuesday

2. Watch: http://www.flippingphysics.com/helmet.html

3. Watch: https://www.youtube.com/watch?v=dbZA5_b3HOA&feature=youtu.be

4. Complete Example problem #1 from pg 232, pg 235 6 & 8