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
![\Delta K + \Delta U = 0](https://tex.z-dn.net/?f=%5CDelta%20K%20%2B%20%5CDelta%20U%20%3D%200)
here we know that
![\Delta U = - 10 kJ](https://tex.z-dn.net/?f=%5CDelta%20U%20%3D%20-%2010%20kJ)
from above expression now
![K_f - K_i - 10 kJ = 0](https://tex.z-dn.net/?f=K_f%20-%20K_i%20-%2010%20kJ%20%3D%200)
![K_f - 0 = 10 kJ](https://tex.z-dn.net/?f=K_f%20-%200%20%3D%2010%20kJ)
so final kinetic energy of the hammer is 10 kJ
Answer:
attribute is defined as a quality or characteristic of a person, place, or thing
Explanation:
Answer:
freezing point and melting point
Answer:
632.8 nm is the wavelength (in air) of red light from a helium neon laser.
Force applied on the car due to engine is given as
towards right
Also there is a force on the car towards left due to air drag
towards left
now the net force on the car will be given as
![\vec F_{net} = \vec F_1 + \vec F_2](https://tex.z-dn.net/?f=%5Cvec%20F_%7Bnet%7D%20%3D%20%5Cvec%20F_1%20%2B%20%5Cvec%20F_2)
now we can say that since the two forces are here opposite in direction so here the vector sum of two forces will be the algebraic difference of the two forces.
So we can say
![F_{net} = F_1 - F_2](https://tex.z-dn.net/?f=F_%7Bnet%7D%20%3D%20F_1%20-%20F_2)
![F_{net} = 300 - 150](https://tex.z-dn.net/?f=F_%7Bnet%7D%20%3D%20300%20-%20150)
![F_[net} = 150 N](https://tex.z-dn.net/?f=F_%5Bnet%7D%20%3D%20150%20N)
So here net force on the car will be 150 N towards right and hence it will accelerate due to same force.