Physics · Classical Mechanics

One end of a long chain is lifted vertically from flat ground to a height H with constant speed v by a force of magnitude F. Assume that the length of the chain is greater than H and that it has a uniform mass per unit length ρ. The magnitude of the force F at height H is (g is the acceleration due to gravity):

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Correct answer

ρ(gH + 2v2)

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