Physics
Fill in the blanks :
(a) When a stone tied to a string is rotated in a horizontal plane, the tension in the string provides …………… force necessary for circular motion.
(b) Work done by this force at any instant is …………… .
Force
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Answer
(a) When a stone tied to a string is rotated in a horizontal plane, the tension in the string provides centripetal force necessary for circular motion.
(b) Work done by this force at any instant is zero .
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