Two identical pucks collide on an air hockey table. One puck was originally at rest. If the incoming puck has a velocity of 6.50 m/s along the +x-axis and scatters to an angle of 32.0° above the +x-axis.
A) What is the velocity (magnitude and direction) of the second puck? (You may use the result that θ1 − θ2 = 90° for elastic collisions of objects that have identical masses.)
Velocity (magnitude) = _______ Velocity (direction) = ________ below +x-axis
B) What is the kinetic energy before and after the collision if the mass of each puck is 0.15 kg? (The collision is elastic.)
Kinetic energy before collision = ________
Kinetic energy after collision =________
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