Explosions in Two Dimensions: a Plate Falls Vertically to the Floor

question 49

Multiple Choice

Explosions in two dimensions: A plate falls vertically to the floor and breaks up into three pieces, which slide along the floor. Immediately after the impact, a 320-g piece moves along the x-axis with a speed of 2.00 m/s and a 355-g piece moves along the y-axis with a speed of 1.50 m/s. The third piece has a mass of 100 g. In what direction does the third piece move? You can neglect any horizontal forces during the crash.

• A) 216.9° from the x-axis
• B) 219.8° from the x-axis
• C) 36.9° from the x-axis
• D) 39.9° from the x-axis
• E) 39.8° from the x-axis

---

Definitions:

McClelland's Acquired Needs

A theory suggesting that an individual's specific needs (achievement, affiliation, power) are acquired over time and shape their motivation and behavior.

Skills-based Pay

A compensation strategy that rewards employees based on the range, depth, and types of skills and knowledge they possess.

Self-managing Teams

Groups of employees tasked with organizing their own workload and making decisions without direct supervision from higher-level managers.

Certification

A formal process verifying that an individual or organization has met a set of criteria or standards, often in a professional context.