A stone is tied at end of string and whirled in horizontal plane with circular path of radius 20 cm. If its acceleration is 980 cms^(-2), then what will be its angular speed ?

A stone is tied at end of string and whirled in horizontal plane with

1.	A stone is tied at end of string and whirled in horizontal plane with circular path of radius 20 cm. If its acceleration is 980 cms^(-2), then what will be its angular speed ?
Answer» <html><body><p></p>Solution :Centripetalacceleration <br/> `a_(c )= (<a href="https://interviewquestions.tuteehub.com/tag/v-722631" style="font-weight:bold;" target="_blank" title="Click to know more about V">V</a>^(2))/( r )` <br/> `=r epsilon^(2) ` <br/> `epsilon = sqrt((a)/(r )) = sqrt((960)/( <a href="https://interviewquestions.tuteehub.com/tag/20-287209" style="font-weight:bold;" target="_blank" title="Click to know more about 20">20</a>))` <br/> `epsilon = sqrt(<a href="https://interviewquestions.tuteehub.com/tag/49-318440" style="font-weight:bold;" target="_blank" title="Click to know more about 49">49</a>) =7 (rad)/( s )`</body></html>