# Angle for SHM(Simple pendulum)

1. ### shayaan_musta

191
Hi!

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

2. ### tiny-tim

26,016
hi shayaan_musta!

because everything works in radians

in particular, v = rω only works in radians

3. ### shayaan_musta

191
Thanks for reply.
But sorry for your answer.

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

Why physicist agree to use radians particularly.

4. ### tiny-tim

26,016
if we use radians, everything is easier …

v = rω

a = rα

etc

5. ### shayaan_musta

191
This implies that if we use degree it is also OK. But use of radians is more easy that degree??
Right?

6. ### tiny-tim

26,016
no … if we use degrees

v = 2πrω/360

a = 2πrα/360

7. ### shayaan_musta

191
You mean, for degree we have to use this conversion??

26,016
yup!

9. ### shayaan_musta

191
OK. Thanks tiny-tim :)

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