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in Laws of Motion and Friction by (24.0k points)
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A stone of mass 0.3 kg attached to a 1.5 m long string is whirled around in a horizontal circle at a speed of 6 m/s. The tension in the string is 

(a) 10 N

(b) 20 N

(c) 7.2 N

(d) 30 N

1 Answer

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by (34.3k points)
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Best answer

Correct option (c) 7.2 N

Explanation :

Here, mass of the stone m = 0.3 kg

Length of a string = 1.5 m

Speed v = 6 m/s

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