Motion of a Mousetrap Car

1
Lesson 19

• Motion of a Mousetrap Car

2
Velocity

• The speed of an object and the direction of its
  motion
• Example
• Calculate the average velocity of a dancer who
  moves 5 m toward the left of the stage in 15 s.

3
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4
Acceleration

• Change in velocity divided by the amount of time
  it takes for the change to occur
• Any time an object speeds up, slows down, or
  changes direction it is accelerating.
• Increase positive acceleration
• Decrease negative acceleration

5
Calculating Acceleration

• Acceleration final velocity initial velocity
• time
• A (vf vi)
• t

6
Practice

• Page 290

7
Question

• How does the speed of a mousetrap car change over
  time?