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Two balls of clay of known masses hang from the ceiling on
Chapter 10, Problem 14CQ(choose chapter or problem)
Problem 14CQ
Two balls of clay of known masses hang from the ceiling on mass-less strings of equal length. They barely touch when both hang at rest. One ball is pulled back until its string is at 45°, then released. It swings down, collides with the second ball, and they stick together. To determine the angle to which the balls swing on the opposite side, would you invoke (a) conservation of momentum, (b) conservation of mechanical energy, (c) both, (d) either but not both, or (e) these laws alone are not sufficient to find the angle? Explain.
Questions & Answers
QUESTION:
Problem 14CQ
Two balls of clay of known masses hang from the ceiling on mass-less strings of equal length. They barely touch when both hang at rest. One ball is pulled back until its string is at 45°, then released. It swings down, collides with the second ball, and they stick together. To determine the angle to which the balls swing on the opposite side, would you invoke (a) conservation of momentum, (b) conservation of mechanical energy, (c) both, (d) either but not both, or (e) these laws alone are not sufficient to find the angle? Explain.
ANSWER:
Step 1 of 2
We need to identify the concert to determine the angle to which the balls swing on the opposite side with explanation.