Mechanical Engineering - Engineering Mechanics - Discussion
Discussion Forum : Engineering Mechanics - Section 1 (Q.No. 1)
1.
According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.
Discussion:
97 comments Page 4 of 10.
Rahul Thakur said:
10 years ago
Principle of conservation of energy states that energy can neither be created nor destroyed. In another approach it can be stated as "the total energy of an isolated system remains constant.
Shubham said:
9 years ago
According to the principle of conservation of energy, the total momentum of a system of masses in Straight line remains constant unless acted upon by an external force in that direction.
Vinay said:
1 decade ago
There is no description of external momentum and secondly force may be applied in any direction and here only one direction is described. But according to newton I can say it is wrong.
Saket Kumar said:
1 decade ago
Law of conservation of energy is first law of thermodynamics where as law of conservation of momentum is Newton's second law and both law are not similar so statement is wrong.
Shailesh said:
1 decade ago
The law of conservation of energy simply tells that energy in any form can neither be created nor be destroyed. It changes from one form of energy to another form of energy.
SOUBHAGYA RANJAN BISWAL said:
1 year ago
According to the conservation of energy, the energy can neither be created nor be destroyed but it can only transfer from one system to another or one form to another form.
(10)
Farrukh waseem said:
1 decade ago
The principle of energy says that the energy in any system can't be created and also destroyed infect one thing is possible that it changes in another form.
Nikhil Varma said:
9 years ago
The rate of change of momentum is directly proportional to the applied force, as stated in the newtons second law of motion.
So, the answer is A(true).
So, the answer is A(true).
Darshan Dodia said:
9 years ago
According to conservation law of energy, energy neither created nor destroyed, it changes its form from one type of energy to another type of energy.
Masiur Rahman said:
9 years ago
That question is based on newton 1st law of motion. According to this law, every body that time up to not motion then not external force are applied.
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