A string of length 40 cm and weighing 10 g is attached to a spring at one end and to a fixed wall at the other end. The spring has a spring constant of 160 N m−1 and is stretched by 10 cm. If a wave pulse is produced on the string near the wall, how much time will it take to reach the spring?
005 s
The mass of the spring is 10 g and length is 40cm.
Spring constant of the spring is k=160 Nm-1.
So, the force exerted by 1 cm pull will be,
We know that the velocity is,
So, the time take will be,