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Physics / College Physics 12 / Chapter 9 / Problem 5CQ

College Physics | 12th Edition | ISBN: 9780321595492 | Authors: Randall D. Knight

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A stationary firecracker explodes into three pieces. One

Chapter 9, Problem 5CQ

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QUESTION:

Problem 5CQ

A stationary firecracker explodes into three pieces. One piece travels off to the east; a second travels to the north. Which of the vectors of Figure Q9.5 could be the velocity of the third piece? Explain.

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QUESTION:

Problem 5CQ

A stationary firecracker explodes into three pieces. One piece travels off to the east; a second travels to the north. Which of the vectors of Figure Q9.5 could be the velocity of the third piece? Explain.

ANSWER:

Problem 5CQ

A stationary firecracker explodes into three pieces. One piece travels off to the east; a second travels to the north. Which of the vectors of Figure Q9.5 could be the velocity of the third piece? Explain.

Step By Step Solution

Step 1 of 2

Since it is a closed system, the net moment of the system should be zero. Now considering the free body diagram of the firecracker exploding:

As mentioned in the question, one part travels to the East and the second part travels to the North.

The resultant vector is directed towards the North East direction as shown in the diagram.

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