A 4 kg block is suspended from the ceiling of an elevator through a string having a linear mass density of `19.2 xx 10^(-3) kg m^(-1)`. Find the speed with which a wave pulse can travel on the string if the elevator accelerates up at `2ms^(-2)(g=10 ms^(-2))`

Explanation

`v=sqrt((T)/(mu))= sqrt((M(g+a))/(mu))`
Substituting the data we get `V=50 ms^(-1)`.