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If both the mass and the velocity of a body is increased to twice of their magnitude, the kinetic energy will increase by
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- 2 times
- 4 times
- 8 times
- 16 times
- 2 times
Correct Option: B
If m be the mass and v be the velocity, then Kinetic Energy is given by KE
| = | (mv2) = | (2m × 4v2) | ||
| 2 | 2 |
| = | mv2 = 4mv2 | ||
| 2 |
So, if both mass and velocity are doubled, the kinetic energy increases by 4 times.
