It takes a time t $=0\mathrm{.}59$ s for a record to revolve on a record player once. A particular point on the record moves past the needle at a speed of vn $=0\mathrm{.}97$ m$/$s$.$

Randomized Variables

t $=0\mathrm{.}59$ s

vn $=0\mathrm{.}97$ m$/$s

$$ Part $($a$)$

What is the radius at which the needle is in contact with the record in m$?$ Part $($b$)$

What is the tangential speed v$2$ of a point on the record that is at r$2=0\mathrm{.}05$ m in m$/$s$?$