A body of mass 80kg was lifted vertically through a distance of 5.0 metres. Calculate the work done on the body. ( Acceleration due to gravity g=10ms²)
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Given:
m = 80 kg
d = 5.0 meters
g = 10 m/s^2
Calculate the work done.
Formula for Work:
W = Fd
W = (Force) ( Displacement)
Formula for Force:
F = ma
F = (mass)(acceleration)
Unit of Force = Newton
Unit of Work = Joule
Solution:
In order to determine the work done, we must first solve for the force.
F = (80 kg)(10 m/s^2)
F = 800 N
Now since we have the value of force, we can solve for work.
W = (800 N)(5m)
W = 4000 J
Final answer:
The work done is 4000 J.