II. Net Force Table:

Directions for Set-Up
Before Pressing Go, which way do you think the cart will move? (None, Right, Left)
Why does the cart move that way?
What is the sum & direction of the forces?
(example: 70 Left)
Place 1 small blue guy on the very end of the left rope & 1 small red guy on the very end of the right rope

Place the medium blue guy on the very end of the left rope & 1 small red guy on the very end of the right rope

Place the big blue guy on the very end of the left rope & add all 4 of the red guys to the right rope

1 answer

Sure! Let's analyze each scenario based on the setup you're describing. I will outline the expected outcomes for each configuration of the small blue guys and red guys.

Scenario 1: 1 Small Blue Guy (Left) & 1 Small Red Guy (Right)

  • Expected Direction: Right
  • Reason: The small red guy on the right exerts a force that is greater than the force exerted by the small blue guy on the left.
  • Sum & Direction of Forces: 1 Right

Scenario 2: Medium Blue Guy (Left) & 1 Small Red Guy (Right)

  • Expected Direction: Left
  • Reason: The medium blue guy exerts a greater force than the small red guy. Therefore, the net force will be to the left.
  • Sum & Direction of Forces: More force Left (e.g., 2 Left)

Scenario 3: Big Blue Guy (Left) & 4 Small Red Guys (Right)

  • Expected Direction: Right
  • Reason: The total force exerted by the four small red guys will exceed that of the big blue guy, resulting in a net force towards the right.
  • Sum & Direction of Forces: 3 Right (assuming each small red guy has a force of 1 and the big blue guy has a force of 2)

Summary of Each Scenario:

  1. 1 Small Blue Guy & 1 Small Red Guy: 1 Right
  2. Medium Blue Guy & 1 Small Red Guy: More force Left (e.g., 2 Left)
  3. Big Blue Guy & 4 Small Red Guys: 3 Right

This analysis helps to understand how varying weights and forces affect the movement of the cart. Adjusting the number of figures or their sizes directly impacts the net force and resultant motion.