a stone tied to a string 80 cm long is whirled in horizontal circle with constant speed.if stone makes 14 revs in 25 sec,what is the magnitude and direction of acceleration?

Asked by  | 28th Jan, 2012, 01:12: PM

Expert Answer:

Frequency of the revolution=14/25,
 
radius of the circle= 80 cm.
 
acceleration=r w2
 
w=2 *pi* f
 
put the values and get the answer, if you dont get you can ask again.

Answered by  | 30th Jan, 2012, 09:58: AM

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