A child swings on a rope hanging from a tree. Which, if any, of the forces on the child do no work? A. tension B. resultant force C. air resistance D. weight The law of conservation of linear momentum applies when A. the net external force is zero B. there are no nonconservative forces acting within the system. C. the net internal force is non-zero D. there is no net external torque
A child swings on a rope hanging from a tree. Which, if any, of the forces on the child do no work? A. tension B. resultant force C. air resistance D. weight The law of conservation of linear momentum applies when A. the net external force is zero B. there are no nonconservative forces acting within the system. C. the net internal force is non-zero D. there is no net external torque
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Transcribed Image Text:A child swings on a rope hanging from tree. Which, if any, of the forces on the child do no work?
O A. tension
OB. resultant force
OC. air resistance
OD. weight
The law of conservation of linear momentum applies when
A. the net external force is zero
B. there are no nonconservative forces acting within the system.
the net internal force is non-zero
O D. there is no net external torque
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