A particle moves along a semicircle of radius $10\,m$ in $5$ seconds. The average velocity of the particle is...........$ms^{-1}$
A particle moves along a semicircle of radius $10\,m$ in $5$ seconds. The average velocity of the particle is...........$ms^{-1}$
$2\pi $
$4\pi $
$2$
$4$
A particle moves along a semicircle of radius $10\,m$ in $5$ seconds. The average velocity of the particle is...........$ms^{-1}$
Velocity of particle $ = \frac{{{\rm{Total \,diplacement }}}}{{{\rm{Total \,time }}}}$
$ = \frac{{{\rm{Diameter\, of\, circle}}}}{5} = \frac{{2 \times 10}}{5} = 4\;m/s$
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