Re:Top F1 designer says auto industry moving in wrong direct...
by apetrov on Wednesday June 08, 2022 @03:11PM
(#31672502)
it's kinetic energy that matter at the impact.
def: E=mv^2/2
assuming car 2 is 2x heavier than car 1, to have the same kinetic energy, their respective velocities should be:
m2 = 2 * m1
2m1 v2^2/2 = m1 * v1^2/2
2 * v2^2 = v1^2
v2 = v1/sqrt(2) ~ 0.7
another word 2000lbs car driving at 100mph has the same kinetic energy as 4000lbs driving at 70mph
assuming car 2 is 2x heavier than car 1, to have the same kinetic energy, their respective velocities should be: m2 = 2 * m1 2m1 v2^2/2 = m1 * v1^2/2 2 * v2^2 = v1^2 v2 = v1/sqrt(2) ~ 0.7
another word 2000lbs car driving at 100mph has the same kinetic energy as 4000lbs driving at 70mph