Question

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 the block will travel after the wire becomes taut?

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

$\frac{1}{2}m{v}^2=\frac{1}{2}k{x}^2$