A person holds a ball in her hand.(a) Identify all the external forces acting on the ball and the Newton’s third-law reaction force to each one. , (b) If the ball is dropped, what force is exerted on it while it is falling? Identify the reaction force in this case. (Ignore air resistance.) :

\(F_g = mg\text{ downward},\;F_H\text{ upward};\text{ reactions: }F_{\text{ball on Earth}} = mg\text{ upward},\;F_{\text{ball on hand}} = F_H\text{ downward}\) \(F_g = mg\text{ downward};\text{ reaction: }F_{\text{ball on Earth}} = mg\text{ upward}\)

A person holds a ball in her hand. • Nerd Notes

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AP Physics 1

2.5 Newton’s Second Law

2.2 Forces and Free-Body Diagrams

BeginnerFRQConceptual12.5k

A person holds a ball in her hand.

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