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Problem
Problem
A person pulls a bucket of water from a well of depth
h
h
h
. If the mass of uniform rope is
m
m
m
and that of the bucket full of water is
M
M
M
, then work done by the person is a.
(
M
+
m
2
)
g
h
\left(M + \frac{m}{2}\right)gh
(
M
+
2
m
)
g
h
b.
1
2
(
M
+
m
)
g
h
\frac{1}{2}(M + m)gh
2
1
(
M
+
m
)
g
h
c.
(
M
+
m
)
g
h
(M + m)gh
(
M
+
m
)
g
h
d.
(
M
2
+
m
)
g
h
\left(\frac{M}{2} + m\right)gh
(
2
M
+
m
)
g
h
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