That's 299,792,458 meters per second.
I had the SAME problem, put down Radiation and it’s thermal/light.
Answer:
by reducing friction.....
....possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
Friction can be reduced by making the surface smoother, lubricating the surface, or reducing the contact between the forces.
Hope this helps!
