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If-the-frequency-of-0-75-long-simple-pendulum-is-1-5Hz-the-angular-frequency-on-a-corresponding-reference-circle-in-rad-s-is-a-1-5pi-b-3pi-c-0-5pi-d-2pi-




Question Number 33535 by NECx last updated on 18/Apr/18
If the frequency of 0.75 long simple  pendulum is 1.5Hz,the angular  frequency on a corresponding  reference circle in rad/s is  a)1.5π b)3π c)0.5π d)2π
$${If}\:{the}\:{frequency}\:{of}\:\mathrm{0}.\mathrm{75}\:{long}\:{simple} \\ $$$${pendulum}\:{is}\:\mathrm{1}.\mathrm{5}{Hz},{the}\:{angular} \\ $$$${frequency}\:{on}\:{a}\:{corresponding} \\ $$$${reference}\:{circle}\:{in}\:{rad}/{s}\:{is} \\ $$$$\left.{a}\left.\right)\left.\mathrm{1}\left..\mathrm{5}\pi\:{b}\right)\mathrm{3}\pi\:{c}\right)\mathrm{0}.\mathrm{5}\pi\:{d}\right)\mathrm{2}\pi \\ $$
Answered by ajfour last updated on 18/Apr/18
ω=2πν =2π(1.5)= 3π rad/s .
$$\omega=\mathrm{2}\pi\nu\:=\mathrm{2}\pi\left(\mathrm{1}.\mathrm{5}\right)=\:\mathrm{3}\pi\:{rad}/{s}\:. \\ $$
Commented by NECx last updated on 18/Apr/18
why didnt you use w=2πf?
$${why}\:{didnt}\:{you}\:{use}\:{w}=\mathrm{2}\pi{f}? \\ $$
Commented by ajfour last updated on 19/Apr/18
symbol for frequency-   ν or f   i used ν for f.
$${symbol}\:{for}\:{frequency}-\:\:\:\nu\:{or}\:{f}\: \\ $$$${i}\:{used}\:\nu\:{for}\:{f}. \\ $$

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