How realistic is the movie Contagion?
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Answer:
Total work done is the sum of potential and kinetic energies,
i.e. W=mgh+
2
1
mv
2
Thus,
P=
t
W
=
t
mgh+
2
1
mv
2
=
60
(800×10×10)+
2
1
×800×(20)
2
=4000W
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