Question

1. two hockey pucks collide, having their centers vertically aligned with the initial velocities shown in the figure. puck 1 most likely passed nearest which labeled point after the collision? (diagram shows pucks with velocity 0.5 m/s, labeled points q, r, s, t; options: s, t, q, r)

Explanation:

To solve this, we analyze the motion of the pucks before and after the collision:

1. Initial Motion: Puck 2 moves upward at \( 0.5 \, \text{m/s} \), and Puck 1 moves at an angle (upward - left) at \( 0.5 \, \text{m/s} \).
2. Collision Effect: When two objects collide (assuming elastic or inelastic with conserved momentum in the vertical/horizontal directions), the path of Puck 1 after the collision should follow the combined momentum/velocity vectors.
3. Path Prediction: The initial upward component of Puck 1’s velocity, combined with the collision (where Puck 2 was moving upward), suggests Puck 1’s path after collision will curve toward a point that aligns with the net motion. From the diagram, the labeled point \( \boldsymbol{Q} \) (or the intended point matching the collision dynamics) is the most likely path.

Answer:

Q (assuming the labeled point Q corresponds to the predicted path; adjust based on the diagram’s exact labels, but the logic is about momentum/velocity direction post - collision).