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QNS Mechanics Energy Conservation

physics.fisikastudycenter.com_2021 Mechanics energy conservation.


A particle of 1 kg of masses released from the top of a building with speed of 2 m/s at the end as shown in the figure. The mechanics energy of particle at 6 m before reaching the ground is....(g = 10 m/s2)

A. 2 joule
B. 120 joule
C. 122 joule
D. 240 joule
E. 244 joule

(Use mechanics energy conservation concepts to solve the problem. ME at 12 m equals  ME at 6 m.)

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