Vibrations and waves

  • Thread starter Dx
  • Start date
  • #1
Dx
I am curious to know that if a mass on a spring undergoes SHM. when the mass is at its MAX displacement from equilibrium, its instantaneous velocity is what?
is it zero!

can someone explain?
Dx :wink:
 

Answers and Replies

  • #2
enigma
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Well, just before the mass hits the max displacement, the velocity is +deltaV, and just after it is -deltaV. You have to go through zero to get from + to -.
 
  • #3
Dx
Okay!

Dx scratches his head.
I said at MAX displacement that deltav is + or - Max but my teacher says im wrong. It must be less than max but not zero as youve kinda explained, i think
Dx :wink:

Right?
 
  • #4
Tom Mattson
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You had it right the first time: The speed at the extrema of position is zero.

If you are moving this way ----->
and then this way <-----

then at some point you had to stop and turn around.
 
  • #5
Dx
Kool

Hello,

Thanks!
Dx :wink:
 
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