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y-x-t Graph

Figure 15-E1 ...

Question

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

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Solution

At t = $1 s e c, s_{1} = v t = 10 \times 1 = 10 c m$

$t = 2 s e c, s_{2} = v t = 10 \times 2 = 20 c m$

$t = 3 s e c, s_{3} = v t = 10 \times 3 = 30 c m$

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