a body of mass 0.10 kg is being revolved in circular path of diameter 1.0 m on a firctionless horizontal plane by means of a string it performs 10 revolution in 31.4 s calculate the centripetal force acting on a body
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ANSWER
Given, m=0.1 kg,r=
2
1.0
=0.5 m
T=
10
31.4
3.14s=π sec
∴F=mrω
2
=mr(
T
2π
)
2
=
T
2
4π
2
mr
=
π
2
4×π
2
×0.1×0.5
=0.2 N. ✔️✔️
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