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A firecracker in a coconut blows the coconut into three
Chapter 9, Problem 41P(choose chapter or problem)
Problem 41P
A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular to each other, at 20 m/s. The third piece has twice the mass of the other two. What are the speed and direction of the third piece?
Questions & Answers
QUESTION:
Problem 41P
A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular to each other, at 20 m/s. The third piece has twice the mass of the other two. What are the speed and direction of the third piece?
ANSWER:
Step 1 of 3
Here we have to find the speed and direction of the third piece of the coconut.
The masses of the three pieces are,
, and .
According to the question,
.
And .
So, the three masses will be,
m, m and 2m.
The first two masses fly towards south and west.
The third one flew in some different direction.
So, diagrammatically,