In a Police Rifle Test, a 15-G Bullet Traveling 213

question 17

Short Answer

In a police rifle test, a 15-g bullet traveling 213 m/s in a vertical direction suddenly buries itself in a 2.4-kg block of wood at rest directly above it. As a result, the bullet-block combination moves vertically upward.
(a) Determine the velocity of the bullet-block combination just after the impact.
(b) Determine the maximum height reached by the bullet/block combination.
(c) Is kinetic energy conserved in this collision?

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Definitions:

Short-Term Goals

Objectives set to be achieved in a brief period, guiding immediate actions and strategies.

Long-Term Goals

Objectives or targets that are planned to be achieved over an extended period, focusing on future aspirations and strategic outcomes.

Frequent Feedback

The process of giving regular, prompt responses or assessments regarding performance, behavior, or learning, aimed at improvement and development.

Goal-Setting Theory

A motivational theory that suggests setting specific and challenging goals, along with appropriate feedback, enhances performance.