What is the kinetic energy of a hammer that starts from rest and decreases its potential energy by 10 kJ?

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

total distance/total time

(85 + 82)/(5+3)

167/8

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