A quarter on a spinning vinyl record has a centripetal acceleration of 34.0 m/s2. What is the acceleration of the quarter if it is placed twice as far from the centre of the vinyl record?

Answer 1

Ac = w^2 R

so doubling R fives twice the Ac, 68.0

Answer 2

A quarter on a spinning vinyl record has a centripetal acceleration of 17.3 m/s2. What is the acceleration of the quarter if it is placed twice as far from the centre of the vinyl record?