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umka21 [38]
3 years ago
9

a man hikes 6.6 km north along a straight path with an average velocity of 4.2 km/h to the north. he rest at a bench for 15 min.

then, he hikes 3.8 km birth with an average velocity of 5.1 km/h to the north. how long does it take the total hike to last
Physics
1 answer:
SSSSS [86.1K]3 years ago
6 0

Answer:

2.6h

Explanation:

I attached the image below of the work hope you can see it. Hope this helps!

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Read 2 more answers
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The solution for this problem is:
Let u denote speed. 

Equating momentum before and after collision: 
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= 1.6 m / s is the answer for this question. This is the speed after the collision.
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