A Hockey Puck with Mass 0 $\circ$
B)-20 ^$\circ$
C)-60 ^$\circ$

question 15

Multiple Choice

A hockey puck with mass 0.250 kg traveling along a line at 2.5 m/s strikes a stationary puck with the same mass.One puck exits the elastic collision in a direction that is 20 degrees away from the line at a speed of 2.35 m/s.What is the angle with respect to the line in which the second puck travels after the collision?

• A)0 \(\circ\)
• B)-20 \(\circ\)
• C)-60 \(\circ\)
• D)-70 \(\circ\)
• E)-90 \(\circ\)

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