A string of mass 2.5 kg is under a tension of 200 N . The length of the stretched string is 20.0 m . If the transverse jerk is struck at one end of the string. How long does the disturbance take to reach the other end?

Question

A string of mass 2.5 kg is under a tension of 200 N . The length of the stretched string is 20.0 m . If the transverse jerk is struck at one end of the string. How long does the disturbance take to reach the other end? (A) 0.5 s (B) 1 s (C) 1.5 s (D) 2 s

Tardigrade Admin · Accepted Answer

V=√(T/m) V=√(200/0 .125) V=40 ms- 1 t=(d/V) t=(20/40) t=0.5 s

Q. A string of mass $2.5 k g$ is under a tension of $200 N$ . The length of the stretched string is $20.0 m$ . If the transverse jerk is struck at one end of the string. How long does the disturbance take to reach the other end?

$0.5 s$

$1 s$

$1.5 s$

$2 s$

$V = \frac{T}{m}$
$V = \frac{200}{0.125}$
$V = 40 m s^{- 1}$
$t = \frac{d}{V}$
$t = \frac{20}{40}$
$t = 0.5 s$

Q. A string of mass 2.5kg is under a tension of 200N . The length of the stretched string is 20.0m . If the transverse jerk is struck at one end of the string. How long does the disturbance take to reach the other end?

0.5s

1s

1.5s

2s