A physics student in a hot air balloon ascends vertically at constant speed. Con

Question

A physics student in a hot air balloon ascends vertically at constant speed. Consider the following four forces that arise in this situation: F1 = the weight of the hot air balloon F2 = the weight of the student F3 = the force of the student pulling on the earth F4 = the force of the hot air balloon pulling on the student Reference: Ref 4-3 Which one of the following relationships concerning the forces or their magnitudes is true?

A. F3 = –F4 B. F4 > F2 C. F4 > F1 D. F1 < F2 E. F2 = –F4

Explanation / Answer

Two statements are true:

as the balloon is rising with a constant velocity

F3 = –F4 and F2 = –F4

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