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8.9 . A 0.160-kg hockey puck is moving on an icy frictionless horizontal surface. At t = 0 the puck is moving to the right at3.00 m>s. (a) Calculate the velocity of the puck (magnitude anddirection) after a force of 25.0 N directed to the right has been appliedfor 0.050 s. (b) If instead a force of 12.0 N directed to theleft is applied from t = 0 to t = 0.050 s what is the final velocityof the puck?