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 9 of 10.
Amit said:
4 years ago
Here it is Stated simply priciple of conservation of momentum, Not energy.
(1)
SHIVAM SINGH said:
4 years ago
It is not principle of conservation of energy, it is principle of conservation of momentum.
(2)
Kesavbond said:
4 years ago
Energy neither can create nor can destroy.
(1)
D.Laxman said:
3 years ago
The principle of law of conservation says that energy neither created nor destroyed.
Tarun Kumar Singh said:
3 years ago
True, when no change in momentum takes place either we say statically condition.
BADATYA KRISHNA CHANDRA said:
3 years ago
Law of energy says that : Energy can neither created nor destroyed but it can transfer from one form energy.
(3)
Leela prasad said:
3 years ago
It states that the total amount of energy in an isolated system remains constant over time. The total energy is said to be conserved over time. For an isolated system, this law means that energy can change its location within the system, and that it can change form within the system, for instance chemical energy can become kinetic energy, but that energy can be neither created nor destroyed.
(2)
Dipakkumar said:
3 years ago
Momentum is mass x vel.. When the force applied in any direction or here in that direction, energy is added & velocity will increase. so the momentum will increase & hence change.
So the answer should be: True.
Correct me if I am wrong.
So the answer should be: True.
Correct me if I am wrong.
(6)
Khan Riyaz Arshad said:
3 years ago
For two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed.
(6)
Aditya Patki said:
3 years ago
No, the statement is False. The principle of conservation of energy states that the total energy of a closed system is constant, it does not say anything about the momentum of a system of masses. The law of conservation of momentum states that the total momentum of a closed system of masses remains constant unless acted upon by an external force in that direction. So, momentum is conserved, not energy.
(22)
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