Waves on a String Video Lessons

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# Problem: A wave on a string is described by D(x,t) = (2.0cm)•sin[2π(x/(8.4m) + t/(0.24s) +1)], where x is in m and t is in s.1.  In what direction is this wave traveling?a. in the positive x-directionb. in the negative x-directionc. in other direction2. What is the wave speed?3. What is the frequency?4. What is the wave number?5. At  t = 0.84s, what is the displacement of the string at x = 4.9 m?

###### FREE Expert Solution

In this problem, we are required to apply concepts regarding wave equations.

1.

The equation of a wave travelling in the positive x-direction is:

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###### Problem Details

A wave on a string is described by D(x,t) = (2.0cm)•sin[2π(x/(8.4m) + t/(0.24s) +1)], where x is in m and t is in s.

1.  In what direction is this wave traveling?

a. in the positive x-direction

b. in the negative x-direction

c. in other direction

2. What is the wave speed?

3. What is the frequency?

4. What is the wave number?

5. At  t = 0.84s, what is the displacement of the string at x = 4.9 m?