The distance between your initial position and your final position is displacement. Often denoted by 
or Δ
Which best describes the relationship between the terms “frequency,” “wavelength,” and “hertz”?
2 answers:
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Answer:
final kinetic energy of the hammer is 10 kJ
Explanation:
As we know that there is no non conservative force on the system
So here we can use the theory of mechanical energy conservation
So we will have
here we know that
from above expression now
so final kinetic energy of the hammer is 10 kJ