EXERCISESA string of mass 2.50 kg is under a tension of 200 N. The length of the stretchedstring is 20.0 m. If the transverse jerk is struck at one end of the string, how longdoes the disturbance take to reach the other end?15.1

EXERCISESA string of mass 2.50 kg is under a tension of 200 N. The len

1.	EXERCISESA string of mass 2.50 kg is under a tension of 200 N. The length of the stretchedstring is 20.0 m. If the transverse jerk is struck at one end of the string, how longdoes the disturbance take to reach the other end?15.1
Answer» Mass of the string,M= 2.50 kgTension in the string,T= 200 NLength of the string,l= 20.0 mMass per unit length, µ =M/l= 2.50/20 = 0.125 kg m-1The velocity (v) of the transverse wave in the string is given by the relation:v = √t/µ= √200/0.125 = √1600 = 40 m/s∴ Time taken by the disturbance to reach the other end,t=l/v= 20/40 = 0.5 s.