query: How does a lever magnify force?
positive_passages.docid: 154430
positive_passages.text: How do levers amplify forces?
negative_passages.docid: 37793
negative_passages.text: What role does static friction force play for a rolling object? How can I know what direction it points?
negative_passages.docid: 126348
negative_passages.text: How should I break down a tension force for free body diagrams?
negative_passages.docid: 109590
negative_passages.text: Work done by the Magnetic Force
negative_passages.docid: 55573
negative_passages.text: What point of application of force ensures more acceleration in a rod?
negative_passages.docid: 11187
negative_passages.text: How do varying static point charges exert the same force on each other?
negative_passages.docid: 3386
negative_passages.text: How can magnets be used to pick up pieces of metal when the force from a magnetic field does no work?
negative_passages.docid: 89839
negative_passages.text: What is function of force $F$ and work $W$?
negative_passages.docid: 103270
negative_passages.text: Force acting on a simple rigid body in space
negative_passages.docid: 4341
negative_passages.text: How does a spinning object "know" that it is spinning?
negative_passages.docid: 63850
negative_passages.text: Why is the restoring force directly proportional to extension?
negative_passages.docid: 105957
negative_passages.text: Why does normal force work?
negative_passages.docid: 65059
negative_passages.text: Force applied off center on an object
negative_passages.docid: 104754
negative_passages.text: Parallelogram Law of Force Addition
negative_passages.docid: 93435
negative_passages.text: What is a "Reversed Effective Force"?
negative_passages.docid: 152247
negative_passages.text: Simple bone pulling a bow (problem)
negative_passages.docid: 50279
negative_passages.text: Constraint force on a rod