An electric fnas rotates 100 times in 50s . If the blength of its wing from its axis of rotation is `0.5` m, then the speed of particle at the edge of the wing is _________ `m s^(-1)`

Options

A. `2pi`
B. `0.5 pi`
C. `pi`
D. 2

Explanation

Radius of the circle path covered by the fan=0.5 m the number of rotation of rotations per socond =100
`"Speed"=("distance")/("time")=(100xx(2pir))/(50)`
`=(100xx2pixx0.5)/(50)=2pi ms^(-1)`