InterviewSolution
Saved Bookmarks
| 1. |
25. A light and a heavy body have equal momentum.Which one has greater kinetic energy?(1). Light body(2) Heavy body(3) Both have equal kinetic energy(4) Data is insufficient |
|
Answer» The light body. Kinetic energy equation:Ek=1/2mv2Ek=1/2mv2Momentum equation:p=mvp=mvKinetic energy equation in terms of momentum:Ek=p^2/2mEk=p^2/2m If two objects have the same mass and the same momentum, they have the same kinetic energy.Of a light and a heavy body having equal kinetic energy, the heavy body has more momentum.At equal momentum, the light body has more kinetic energy. |
|