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 3 of 10.
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)
ANKIT said:
8 years ago
In physics, the law of conservation of energy states that the total energy of an isolated system remains constant"it is said to be conserved over time. Energy can neither be created nor destroyed; rather, it transforms from one form to another.
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.
Vipul Kumar said:
1 decade ago
This should be like this only, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in any (that) direction.
Momentum will change if we apply force in any direction.
Momentum will change if we apply force in any direction.
(1)
Sudhanshu shekhar rana said:
1 decade ago
I think the correct answer will be option(A) because in order to change the momentum of any system in any dirn we will need to change the velocity which occurs only when there is net external force on the system.
Yash kumar said:
9 years ago
According to the law of conservation, all momentum of the system will remain constant in any direction without acting any force in that direction. It will change when any force will act in that direction.
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)
Raj shah said:
1 decade ago
The total momentum of a system of masses in any direction remains constant unless acted upon by an external force in any (that) direction.
Momentum will change if we apply force in any direction.
Momentum will change if we apply force in any direction.
Ajay Borkar said:
1 decade ago
Principle of conservation of energy states that energy can neither be created nor be destroyed but can changes into another form.
And remaining statement shows about the law of linear momentum.
And remaining statement shows about the law of linear momentum.
Arbind rai said:
1 decade ago
We know that momentum is multiplication of mass & velocity and velocity never will be constant because velocity is vector quantity so momentum of any system not constant in any direction.
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