Pulses Superposition: After 5s & 1cm/s Velocity

[tanzerino]

1. Two pulses are traveling towards each other at 1 cm/s on a long string at t = 0 s, as shown below.
,after t=5s and velcoity=1cm/s what would be the shape of the pulses:


http://img21.imageshack.us/img21/7654/homeworkk.png

 

[kuruman]

Where will the leading edge of each pulse be after 5 s? Draw a picture of each pulse and, where they overlap, stack them up like boxes. That's superposition.

 

[tanzerino]

so this means number second one?
i drew both pulses and stacked the overlaping and left the others alone.

 

[kuruman]

I would say you are correct.

 

[tanzerino]

Thanks a lot for your help.