A stone tied to the end of a string of 1 m 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 stone tied to the end of a string of 1 m 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?
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Transcribed Image Text:A stone tied to the end of a string of 1 m 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) л² m s² and direction along the radius towards
the centre
(b) л² m s-² and direction along the radius away
from the centre
(c) л² m s2 and direction along the tangent to the
circle
(d) ²/4 m s¯² and direction along the radius towards
the centre.
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