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प्रश्न
One end of a string of length l is connected to a particle of mass m and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed the net force on the particle (directed towards the centre) is:
T is the tension in the string.
पर्याय
T
`"T" - ("mv"^2)/"l"`
`"T" + ("mv"^2)/"l"`
0
उत्तर
T
Explanation:
The net force directed towards the centre of the particle is T. This force acts as the necessary centripetal force for the particle to move in a circle.
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