Answer:
15625.03 Joule
Explanation:
The force which the two people have to exert on the mass in order to lift it is
F=mg
Where,
m = Mass = 653.2 kg
g = Acceleration due to gravity = 9.81 m/s²
[tex]F=653.2\times 9.81\\\Rightarrow F=6407.892\ N[/tex]
At one time the people lifted the mass 4 in
Energy required in one time
[tex]E=F\times s\\\Rightarrow E=6407.892\times \frac{4}{39.37}\\\Rightarrow E=651.04\ J[/tex]
Energy required in 24 times
[tex]E=651.04\times 24\\\Rightarrow E=15625.03\ J[/tex]
Energy required to raise the mass 4 inches 24 times is 15625.03 Joule
