A stone tied to the end of a string of 1 
long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolutions in 44 seconds, what is the magnitude and direction of acceleration of the stone?
A
and direction along the radius towards the center
B
and direction along the radius away from the center
C
and direction along the tangent to the circle
D
and direction along the radius towards the center.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a, b)
;
22 revolution 
sec.
1 revolution 
sec.
Hz
Towards the centre, the centripetal acceleration
and away from the centre, the centrifugal acceleration is 
and are correct as the directions are given.
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