A particle is revolving in a circular path as shownin figure in the horizontal plane such that the angular velocity of the particle about the point O is constant and is equal to `1 rad//s`. Distance of the particle from O is given by`R=R_(0)-betat` where `R_(0)`and `Beta` are constant. The speed ofthe particle,as afunction of time is: ltbrlt

Options

A. `sqrt(beta^(2)+1)`
B. `(R_(0)+beta t)`
C. `beta`
D. `sqrt(beta^(2)+(R_(0)+beta t)^(2))`

Answer

D