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 8 of 10.
Suresh kumawat said:
1 decade ago
The statment is related to the newton's second law.
NamrAta Mishra said:
1 decade ago
According to law of conservation of energy charge cannot be created nor destroyed but transferred from one body to other so if two bodies collide their mass will change automatically whether or not an external forces Are applied.
Sachendra chaturvedi said:
1 decade ago
This principle is called conservation of momentum.
Srikanth said:
1 decade ago
Principle of conservation of energy states that energy can neither be created nor be destroyed but can be transformed from one form to another form.
Purnendra said:
1 decade ago
Momentum is a vector quantity so change in direction change the momentum.
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.
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.
Krunal Patil said:
1 decade ago
Momentum changes with gravity, and gravity changes from place to place.
Er. A.G.Jadhav said:
9 years ago
The question related to the Newtons Second law of motion, whereas the law of conservation of energy is different.
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).
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