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A puck (mass = 0.3 kg) slides without friction on a horizontal plane. It is attached by a light string (length = 1 m) to a ring on a peg. The puck, initially at rest, is struck by a force of 172 N which acts for a time of 0.029 s, in the direction perpendicular to the string. Calculate the tension in the string as the puck revolves around the peg.

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