Question: It takes a time t = 0.68 s for a record to revolve on a record player once. A particular point on the record moves

It takes a time t = 0.68 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 v_n = 1.01 m/s.

a) What is the radius at which the needle is in contact with the record in m?

b) What is the tangential speed v₂ of a point on the record that is at r₂ = 0.05 m in m/s?

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