Question Answers

Sahay Sir > Question Answers > NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions > Physics > Chapter 14 - Solid Mechanics > Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and second wire has cross-sectional area 3A. If the length of first wire increased by Δl on applying force F, how much force is needed to stretch second wire by the same amount?

Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and second wire has cross-sectional area 3A. If the length of first wire increased by Δl on applying force F, how much force is needed to stretch second wire by the same amount?

the length of the wire becomes (L+l). The elastic potential energy stored in the extended wire is When a block of mass M is suspended by a long wire of length L