Amass m is constrained to move on a horizontal frictionless surface. It is set in curcular motion with radius r,and angular speed w, by an applied force i communicated through an inextensible thread that passes througha hole on the surface as shown in the figure. This force is then suddenly doubled. The magnitude ofthe radialvelocity of the mass25.(a) Increases till the mass falls into the hole.(c) Remains constant.(b) Decreases till the mass falls into the hole.(d) Becomes zero at a radius r, where 0

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