Figure (15-E1) shows a wave pulse at t = 0. The pulse moves to the right with a speed of 10 cm s1. Sketch the shape of the string at t = 1 s, 2 s and 3 s.



The speed is 10 cms-1


So, at 1 s the pulse will be at 10 cm.



At 2 s the pulse will be at


X=2x10cm


=20 cm



At 2 s the pulse will be at


X=3x10cm


=30 cm


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