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Question : 1
Total: 27
A string of mass 2.50 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?
Solution:
Here, M = 2.50 kg, T = 200 N, length of the string, l = 20 m
Therefore, mass per unit length of the string,
µ =
= 0.125 kg m − 1
Now,v = √
= √
= 40 m s − 1
Therefore, time taken by the transverse jerk to reach the other end,
t =
=
= 0.5 s
Therefore, mass per unit length of the string,
Now,
Therefore, time taken by the transverse jerk to reach the other end,
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