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Mechanical Properties Of Solids
Question
Two wires are made of the same material and have the same volume. However wire 1 has cross-section area A and wire 2 has cross–sectional area 3A. If the length of wire 1 increases by ∆x on applying force F, how much force is needed to stretch wire 2 by the same amount?
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F
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4F
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9F
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6F
Solution
C.
9F
Some More Questions From Mechanical Properties of Solids Chapter
A rope is wound around a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceleration of the cylinder if the rope is pulled with a force of 30 N?
Assertion: A rigid body can be elastic.
Reason: If s force is applied on the rigid, its dimensions may change.
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