Exam-1-09

Exam-1-09 - LAST NAME First name and initial DO NOT OPEN...

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Problems 1-3: Two hockey pucks with mass 160 g each slide on ice with constant velocities 0 , 10 , 10 1 = v m/s and 0 , 5 , 5 2 - = v m/s. Problem 1 What is the total momentum p of the system consisting of these two hockey pucks? A) <2.4, 2.4, 0> kg . m/s B) <2.4, 0.8, 0> kg . m/s C) <2.4, -0.8, 0> kg . m/s D) <10, 5, 0> kg . m/s E) <0.8, 2.4, 0> kg . m/s Problem 2 After the pucks collide, the first puck velocity changes to 0 , 5 , 5 ' 1 - = v . What will be the velocity of the second puck ' 2 v after this collision? A) <10, -10, 0> m/s B) <3.1, 4.8, 0> m/s C) <12, 2.1, 0> m/s D) <10, 10, 0> m/s E) <3.1, -4.8, 0> m/s Problem 3 What is the impulse delivered during the collision to the first puck? A)
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Exam-1-09 - LAST NAME First name and initial DO NOT OPEN...

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