isn't displacement negative?

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PG1995

Active Member
Hi

Could you please help me with the query included in the attachment? Thank you.

Regards
PG
 
Last edited:
Look at the diagram.

Q is still on the positive side of the origin, so the displacement (ie it position with respect to the origin) is positive.

Simple.

JimB
 
JimB said:
Look at the diagram.

Q is still on the positive side of the origin, so the displacement (ie it position with respect to the origin) is positive.

Simple.

JimB
Click to expand...

Thank you, Jim.

Sorry. I forgot that displacement's direction is defined with reference to some point, not with reference in which direction movement is taking place.

Regards
PG
 
And since this is a sine wave, it will be positive in the first and second quarters, and negative in third and fourth quarters. (Remember All, Sine, Cosine, Tan)
 
aljamri said:
And since this is a sine wave, it will be positive in the first and second quarters, and negative in third and fourth quarters. (Remember All, Sine, Cosine, Tan)
Click to expand...

Hi,

Dont you mean All, Sin, Tan, Cos ?

Code: 
             y

             |
             |
    SIN      |    ALL
             |
             |
  -----------+------------- x
             |
             |
    TAN      |    COS
             |
             |
 
Last edited:
YES! that's it, I'm always forgeting 3rd or 4th is the sosine as it is always (in my mind) follows sine.

thanks
 
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