During which time interval is the particle described by these position graphs at rest?
$0 - 1\ s$
$1 - 2\ s$
$2 - 3\ s$
$3 - 4\ s$
Between $2 – 3$ sec both $x$ and $y$ position are not changing.
A particle does uniform circular motion in a horizontal plane. The radius of the circle is $20$ cm. The centripetal force acting on the particle is $10\, N$. It's kinetic energy is …….. $J$
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