A pendulum consists of a compact 0.4 kg bob attached to a string of length 1.6 m. A block of mass (m) rests on a horizontal frictionless surface. The pendulum is released from rest at an angle of 53 degrees with the vertical. The bob collides elastically with the block at the lowest point of its arc. Following the collision, the bob swings backwards through a maximum angle of the pendulum with the vertical is 5.73 degrees. Determine the mass (m).

A pendulum consists of a compact 0.4 kg bob attached to a string of length 1.6 m. A block of mass (m) rests on a horizontal frictionless surface. The pendulum is released from rest at an angle of 53 degrees with the vertical. The bob collides elastically with the block at the lowest point of its arc. Following the collision, the bob swings backwards through a maximum angle of the pendulum with the vertical is 5.73 degrees. Determine the mass (m).

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