A puck on a frictionless air hockey table has a mass of 8.0 g and is attached to

Question

A puck on a frictionless air hockey table has a mass of 8.0 g and is attached to a cord passing through a hole in the surface as in the figure. The puck is revolving at a distance 6.0m from the hole with an angular velocity of 4.0rad/s. The cord is then pulled from below, shortening the radius to 2.0 m. The new angular velocity (in rad/s) is________.


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a. 39

b. 4.0

c. 41

d. 6.0

e. 36







*****************please show me how u get the answer*****************

Explanation / Answer

c. 41

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