Mechanical Engineering - Engineering Mechanics - Discussion
Discussion Forum : Engineering Mechanics - Section 2 (Q.No. 2)
2.
The loss of kinetic energy during elastic impact is zero.
Discussion:
14 comments Page 1 of 2.
Shubham Sharma said:
3 years ago
For perfectly elastic bodies, losses of KE during collision is zero.
For elastic body impact coefficient of restitution is 0 to 1. So, there is some loss in KE.
For elastic body impact coefficient of restitution is 0 to 1. So, there is some loss in KE.
(2)
S. Ata said:
8 years ago
It says elastic body, not perfectly elastic so answer Will be B- Disagree.
(1)
Ujjawal aggarwal said:
7 years ago
Energy can neither be created nor be destroy, it can only be transfer from one to another body. So, either the body is perfectly elastic or only elastic it doesn't matter. So, I agree.
(1)
Davra Jay said:
7 years ago
Loss of kinetic energy in perfectly elastic collision is should be zero but for elastic collision it may be vary between 1 to 99% loss.
(1)
Manoj kumar g said:
1 decade ago
As in elastic collision the energy gets directly transformed to the other body and there would not be any loss in energy.
Amit said:
1 decade ago
After elastic impact energy transferred of one body to the other body so loss of energy is zero.
Shivaprasad karnati said:
9 years ago
Only in the perfectly elastic collision, there is no dissipation of kinetic energy, so that bodies move with the same relative velocity as before.
In an elastic collision, there will be some dissipation of kinetic energy so that the relative velocity after the collision is less than before. That's why e < 1.
So, I disagree.
In an elastic collision, there will be some dissipation of kinetic energy so that the relative velocity after the collision is less than before. That's why e < 1.
So, I disagree.
Vinu said:
9 years ago
E always less the one. So, I disagree this.
Md DANISH Quamar said:
9 years ago
Since in elastic collision momentum and K. E both remain constant. So, I agree.
Sagar007 said:
9 years ago
For perfectly elastic bodies, loss of KE during collision is zero. For elastic impact coefficient of restitution is 0 to 1. So, there is some loss.
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