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Question
following Figure shows a wave pulse at t = 0. The pulse moves to the right with a speed of 10 cm s−1. Sketch the shape of the string at t = 1 s, 2 s and 3 s.
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Solution
Given,
Wave pulse at t = 0
Wave speed = 10 cms−1
Using the formula
\[s = v \times t\]
\[At: \]
\[t = 1 s, s_1 = \nu \times t = 10 \times 1 = 10 cm\]
\[t = 2 s, s_2 = \nu \times t = 10 \times 2 = 20 cm\]
\[t = 3 s, s_3 = \nu \times t = 10 \times 3 = 30 cm\]
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