DAY 50

Goals: SWBAT...

1. Momentum - Is It Conserved?

Warm-Up (5min):

No HW/video check today. Lots of fun lab work to do today though!

Golf. When a golf club hits a golf ball, which experiences a larger force?
Pool. When a cue ball hits the 8-ball, which experiences a larger force?
Figure Skating: Consider the interaction between a male and female figure skater in pair figure skating. A woman (m = 45 kg) is kneeling on the shoulders of a man (m = 70 kg); the pair is moving along the ice at 1.5 m/s. The man gracefully tosses the woman forward through the air and onto the ice. The woman receives the forward force and the man receives a backward force. Which force is larger? Who experiences a larger velocity change?

CLASSWORK

1. #050A: Momentum Notes. What Happens When Two Objects Interact?

Scenario: The dropped brick is at rest and begins with zero momentum. The loaded cart (a cart with a brick on it) is in motion with considerable momentum. )The actual momentum of the loaded cart can be determined using the velocity (often determined by a ticker tape analysis) and the mass.)
1. What happens to the x-velocity of the loaded cart after the dropped brick falls on it?
2. What happens to the x-velocity of the dropped brick after it falls on the cart?
3. What happens to the horizontal momentum of the cart during the collision?
4. What happens to the horizontal momentum of the dropped brick during the collision?
#050B: Activity: Is Momentum Conserved?
- All data is in reference to the horizontal. Ignore the vertical velocity of the dropped brick.
- You likely know the answer, but how could you use data to prove it?
- Work by yourself or in a small group (2-3 total)
- Choose two trials to analyze
- Record data in pencil. Do any math NEATLY on a separate sheet of paper, and staple it to the handout.
- Two or more people should do math INDEPENDENTLY, then compare answers.
- Data is due tomorrow.
- Absent? Link to handout is here: LINK
- Link to activity is here: LINK

At Home Learning (HW)

1. complete #050B

Stuck? Here are two videos to help you through the process.

Use the remind app for any further questions...

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