Amoving company is called into a building and asked to relocate 520 bricks to a location 15 meters above the ground. if each brick is 4 kilograms, what amount of work will be needed to accomplish the task? (a)305,760j(b)203,840j(c)229,320j(d )588,000j

Work = (force) x (height)

         = (mass x gravity) x (height)

         (520 bricks) x (4 kg/brick) x (9.8 m/s²) x (15 meters)

     =  (520 x 4 x 9.8 x 15)    kg-m²/s²

     =      305,760  (kg-m/s²) (m)

     =      305,760    Newton - meter

     =      305,760 Joules    (choice-'a')

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