Physics
Grade-7
Easy
Question
What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes v/2
KE- 4 KE
- 2 KE
KE
Hint:
The kinetic energy of the body that has m mass and v velocity is 1/4 KE
The correct answer is: KE
- The kinetic energy changes according to the velocity change.
- If a body has m mass and its velocity changes to v/2, the new kinetic energy will be 1/4 KE.
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