Gerry D

Depok, West Java, Indonesia

Physics Expert



I tutored some of my friends in high school and gave them a good concept regarding the topic that they want to knew about. Moreover, I like to deal with something more challenging problem that requires a thorough analysis. A base concept will be adjusted according to the request or audience level.


Undergraduate Engineering

Subjects of Expertise


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1 Tutorial by Gerry D

Conservation of energy

When a system is isolated from the dissipative force, then the total energy of the system remains constant with time. One of the example of it is friction force. Its direction always oppose the motion of the system and at certain amount of time, the system energy will be reduced because of work done by…