Question

A 125 cm long string has a mass 2.0 g and it is stretched with a tension of 7.0 N between
fixed supports. What is the speed of the transverse wave on the string?

Answer 1

Answer:

- l = 125sm = 1.25m

- m = 2.0g

- F = 7.0N

we have rho = m / l = 0.0016kg/m

Speed of wave is $v = \sqrt{(\text{F}/\text{rho})} = 66.2\text{m/s}$