Please make answer to where I can read it please. Also needs to be logical and c

Question

Please make answer to where I can read it please. Also needs to be logical and correct. Thank you!

Homework Assignment Due on Tue/Wed, Aug 1/2 1. At a given instant, it is found that all the points on a string, carrying a wave, has the position shown below. If the instantaneous velocity of point A is pointing up and the instantaneous velocity of point B is pointing down. What direction does the wave propagate to? Please show your work to explain. Position 2. The positions of all the points at a given instant is shown below. It is known that the distance between point A and B is 10 cm and the distance between B and C is also 5 cm. If the wave is traveling at a velocity of the 5 cm/s, please answer the following questions and show your work in detail Position (a) After 2.8 seconds, does A or B have a higher position? Why? x (b) If after 2.8 seconds, B is below C, in

Explanation / Answer

1]The wave is travelling towards left.

In order to understand the logic behind this, we draw a left shifted version (only marginally) of the wave in same figure. It can be the shape of string after a small time dt. Now we see that point A has gone up and B has came down.

Now if we draw a rightq shifted version, we find that A comes down and B goes up which violates the condition given in question.

So wave is moving left

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