CBSE Class 11-science Answered
Can the final kinetic energy of the system be greater than the initial KE in a collision?
Asked by devanshu_jain | 23 Oct, 2010, 02:40: PM
Expert Answer
Dear student
Following account would help you undertsand how Kinetic energy modifies post collision.
In Completely Inelastic Collisions
The ratio of final to initial kinetic energy is
K2⁄K1 = mA(mA + mB), (completely inelastic collision, B initially at rest).The right side is always less than unity because the denominator is always greater than the numerator. Even when the initial velocity mB is not zero, it is not hard to verify that the kinetic energy after a completely inelastic collision is always less than before.
In Completely Elastic Collisions
If the kinetic energy of a system is the same after the collision, we call this kind of collision elastic collision.
The ratio is unity here.
We hope that resolves your query.
Regards
Team
TopperLearning
Answered by | 25 Oct, 2010, 09:48: AM
Concept Videos
CBSE 11-science - Physics
Asked by veenasangeeth2020 | 30 Jan, 2024, 09:56: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by abdulkhadirchajjo549 | 06 Dec, 2023, 06:55: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by anushkaverma.25707 | 24 Aug, 2023, 07:35: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by sakethrockzz007 | 04 Aug, 2023, 11:17: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by dhruvund8769 | 04 Feb, 2023, 11:41: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by gdeadshot85 | 12 Jan, 2023, 10:28: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by vaniimtiyaz630 | 12 May, 2022, 12:19: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by KRISHPATEL.soc | 22 Apr, 2022, 04:19: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by bandarirohinipriya | 08 Feb, 2022, 09:46: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by unnatibhise08 | 22 Dec, 2021, 08:46: AM
ANSWERED BY EXPERT