PYQ Adv 2023 P1 Q4

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A bar of mass 𝑀 = 1.00 kg and length 𝐿 = 0.20 m is lying on a horizontal frictionless surface. One end of the bar is pivoted at a point about which it is free to rotate. A small mass π‘š = 0.10 kg is moving on the same horizontal surface with 5.00 m sβˆ’1 speed on a path perpendicular to the bar. It
hits the bar at a distance 𝐿/2 from the pivoted end and returns back on the same path with speed v. After this elastic collision, the bar rotates with an angular velocity πœ”. Which of the following statement is correct?\n

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