Correction pada tutorial answers(vibration)

Dr.azma ader buat pembetulan pd jawanpan tutorial..ini adalah msg drpd dia

Salam,

I have made mistake in converting RPM (rotation per minute) into angular frequency (radian/sec).

It should be multiplied by 2pi after divided by 60.

Therefore:

1 RPM=(1/60)*2pi [radian/sec]

Please correct this to your tutorial answers (Tutorial 3 and 5) and post this issue in your BLOG so all the students are aware.

pi=3.14;

Many thanks,