A suspended long metal wire is stretched a small distance $x$ by a load $W$ in newton suspended at the other end. Select the best answer out of the following
A suspended long metal wire is stretched a small distance $x$ by a load $W$ in newton suspended at the other end. Select the best answer out of the following
- A
The loss in potential energy of the load $W$ is equal to the gain in energy of the wire in stretching a length $x$
- B
The energy stored in the wire can be calculated from the area between the force extension graph and the extension axis
- C
The energy per unit volume stored in the wire $ = \frac{1}{2}Wx$
- D
None of the above
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One end of a slack wire (Young's modulus $Y$, length $L$ and cross-sectional area $A$ ) is clamped to a rigid wall and the other end to a block (mass $m$ ), which rests on a smooth horizontal plane. The block is set in motion with a speed $v$. What is the maximum distance, then the block will travel after the wire becomes taut?
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