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Edwardo_Elric
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Homework Statement
A mail bag with a mass 120kg is suspended by a vertical rope 8.0m long.
a.) What horizontal force is necessary to hold the bag in a position displaced sideways 4.0m from its initial position?
b.) How much work is done by the worker in moving the bag to this position?
Homework Equations
K1 + U1 + W_{other} = K2 + U2
The Attempt at a Solution
i don't understand the problem but here's what i drew so far... can u tell me if this correct
1/2(mvi^2) + mgy + F x d = 1/2(mvf^2) + mgyf
stuck here
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