Question

a moving 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

Answer 1

I just took the test, A. 305,760 J good luck

Answer 2

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')