body of mass is 12 KG moving of 20 m s find the kinetic energy
Answers
Answered by
1
Answer:
search-icon-header
Search for questions & chapters
search-icon-image
Class 11
>>Physics
>>Work, Energy and Power
>>Kinetic Energy
>>A body of mass 10 k g is mo...
Question
Bookmark
A body of mass 10kg is moving with a velocity 20ms
−1
. If the mass of the body is doubled and its velocity is halved, find the ratio of the initial kinetic energy to the final kinetic energy.
Hard
Solution
verified
Verified by Toppr
Given , Mass of object, m=10 kg
Velocity of object, v=20ms
−1
Initial Kinetic energy, K
1
=
2
1
×10×20
2
=2000 J
Now, Final mass, m
2
=20 kg
Final Velocity, v
2
=10m/s
Final Kinetic energy, K
2
=
2
1
×20×10
2
=1000 J
Required Ratio =
K
2
K
1
=
1000
2000
=2:1
Answered by
0
The answer should be this
Thx...
Pls mark me as a brainliest....
Attachments:
Similar questions