A 0.0102-kg bullet is fired straight up at a falling wooden block that has a mass of 3.47 kg. The bullet has a speed of 748 m/s when it strikes the block. The block originally was dropped from rest from the top of a building and had been falling for a time t when the collision with the bullet occurs. As a result of the collision, the block (with the bullet in it) reverses direction, rises, and comes to a momentary halt at the top of the building. Find the time t. Number Units

A 0.0102-kg bullet is fired straight up at a falling wooden block that has a mass of 3.47 kg. The bullet has a speed of 748 m/s when it strikes the block. The block originally was dropped from rest from the top of a building and had been falling for a time t when the collision with the bullet occurs. As a result of the collision, the block (with the bullet in it) reverses direction, rises, and comes to a momentary halt at the top of the building. Find the time t. Number Units

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

A 0.0102-kg bullet is fired straight up at a falling wooden block that has a mass of 3.47 kg. The bullet has a speed of 748 m/s when it
strikes the block. The block originally was dropped from rest from the top of a building and had been falling for a time t when the
collision with the bullet occurs. As a result of the collision, the block (with the bullet in it) reverses direction, rises, and comes to a
momentary halt at the top of the building. Find the time t.
Number i
Units

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