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GaryK [48]
3 years ago
12

What is the speed of a skater who travels a distance of 210 m in a time of 10 seconds?

Physics
1 answer:
Klio2033 [76]3 years ago
7 0

21m per second. Take 210 divided by 10. Hope this helps!

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$416 sounds like the best answer.

Explanation:

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The collision between a hammer and a nail can be considered to be approximately elastic. estimate the kinetic energy acquired by
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Here we can use momentum conservation as in this type of collision there is no external force on it

m_1v_{1i} + m_2v_{2i} = m_1 v_{1f} + m_2v_{2f}

now here we can say

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