QUESTION IMAGE
Question
situation 5: select any five people, 3 on one side, two on the other, . move them up to the rope in any location.
different amounts of people anywhere on the rope
draw vectors (bigger for larger force)
predicted movement (none, left, right)
actual movement (none, left, right)
sum of forces (n) (0, #-left, #-right)
force left = ?
force right = ?
sum of forces = ?
Step1: Assign force per person
Assume each person exerts $10\ \text{N}$ of force.
Step2: Calculate left/right forces
3 people on left: $F_{\text{left}} = 3 \times 10 = 30\ \text{N}$
2 people on right: $F_{\text{right}} = 2 \times 10 = 20\ \text{N}$
Step3: Find net force
Net force: $F_{\text{net}} = F_{\text{left}} - F_{\text{right}} = 30 - 20 = 10\ \text{N}$ (left direction)
Step4: Predict movement
Net force left → movement left.
Step5: Confirm actual movement
Matches prediction (left).
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| Draw vectors (bigger for larger force) | Predicted Movement | Actual Movement | Sum of Forces (N) |
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(Note: Force values assume 10 N per person; vectors are drawn with left vector longer than right vector)