Question

A coin of mass 0.05g is lying 10cm from the centre of phonograph record revolving at 45rpm . what is it's acceleration​

Answer 1

Answer:

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Answer 2

if the coin stays attached to the surface its acc will be the same as the phonograph.

angular velocity = 45 *2π/60 rad/s

acc = R * (angular velocity) ^2

acc = 2.2 rad/s^2