Explanation:
Given that,
Weight of the engine used to lift a beam, W = 9800 N
Distance, d = 145 m
Work done by the engine to lift the beam is given by :
W = F d
[tex]W=9800\ N\times 145\ m\\\\W=1421000\ J\\\\W=1421\ kJ[/tex]
Let W' is the work must be done to lift it 290 m. It is given by :
[tex]W'=9800\ N\times 290\ m\\\\W'=2842000\ J\\\\W'=2842\ kJ[/tex]
Hence, this is the required solution.
