If the speed of the tip of the minute hand of a town clock is `1.75xx10^(-3) m//s`, then the speed of its second hand of same length will be

Options

A. `1.7xx10^(-3) m//s`
B. `10.510^(-3) m//s`
C. `10.5xx10^(-2) m//s`
D. `17.5xx10^(-3) m//s`

Answer

C

Explanation

`v_(1) = r omega _(1) and v_(2)= r omega _(2) therefore (v_(2))/(v_(1))=(omega _(2))/(omega_(1))=(T_(1))/(T_(2))`