Angle for SHM(Simple pendulum)

1. Mar 8, 2012

shayaan_musta

Hi!

Why it is necessary to has angle in radians for SHM(Simple pendulum)?

2. Mar 8, 2012

tiny-tim

hi shayaan_musta!

in particular, v = rω only works in radians

3. Mar 9, 2012

shayaan_musta

I need a explanation that why don't we use degree instead of radians??

Why physicist agree to use radians particularly.

4. Mar 9, 2012

tiny-tim

if we use radians, everything is easier …

v = rω

a = rα

etc

5. Mar 9, 2012

shayaan_musta

This implies that if we use degree it is also OK. But use of radians is more easy that degree??
Right?

6. Mar 9, 2012

tiny-tim

no … if we use degrees

v = 2πrω/360

a = 2πrα/360

7. Mar 9, 2012

shayaan_musta

You mean, for degree we have to use this conversion??

8. Mar 9, 2012

yup!

9. Mar 9, 2012

shayaan_musta

OK. Thanks tiny-tim :)