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Pulley Systems
AP Physics 1 · Unit 2 Forces
Learning Objectives
Fixed pulley changes direction, not force
Movable pulley halves the effort force
MA = Load / Effort = number of supporting ropes
Trade-off: less force = more rope to pull
Tags
pulley
mechanical advantage
simple machine
AP Physics 1
System
Single Fixed
Single Movable
Compound (2)
Block & Tackle (4)
Load (kg)
50
Analysis
Load Weight
490 N
Effort Force
490 N
MA
1
Rope to Pull
1× d