a pulse was created in a slinky of length 4m by group of students .they observed that it returned,after ,reflection, at the point of creation 6times in10 seconds and calculated the speed as ?
Asked by | 30th Nov, 2013, 06:09: PM
we know that speed is given as distance / time
distance = 4m
time = the time taken by the pulse to travel 1 to and fro.
which will be time taken by n number of to and fro / n.
here pulse travels 6 to n fro in 10 sec. (n = 6)
time = 10/6 = 1.66 s
speed = 4/1.6 = 2.5 m/s
Answered by Komal Parmar | 30th Nov, 2013, 09:07: PM
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