A piece of ductile metal is in the form of a cylinder of diameter 1 cm and length 11 cm. It is drawn out into a wire of diameter 1 mm. What will be the length of the wire so obtained.
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The volume of the cylinder is 2.75π cm^2, or 275π mm^2.
The new cylinder formed has radius of 0.5 mm.
V=πhr^2
275π=0.25πh
h=1100 mm
h=110 cm
h=1.1 m
The new cylinder formed has radius of 0.5 mm.
V=πhr^2
275π=0.25πh
h=1100 mm
h=110 cm
h=1.1 m
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