C
To expound, gravity and light travel at the same speed.
It is a fundamental fact of nature that nothing can travel faster than light, but matter slows light while gravity is not slowed or...
Gravity is a state of space-time, however gravitational waves, predicted by Enstein general relativity yet not directly proven, travels with the speed of light, the highest possible speed, because...
How is your kinetic energy related to your speed? Kinetic Energy is proportional to the square of the velocity. If the velocity is doubled, the KE is 4 times as much. I don't remember ever seeing...