Cows can't roll that fast.
Spherical cows on the other hand have to move with orbital velocity at least, or they fail to stay in vacuum for long and splash.
Not with that attitude
It takes a stupid cow, but when they can climb mountains as they do it is not inconcievable that one can roll down.
(I was suprised to see a cow jumping up on a ~3m rock ledge like it was nothing)
However, they can go up stairs, but not down them.
Or on shabbos
Spherical cows on the other hand have to move with orbital velocity at least, or they fail to stay in vacuum for long and splash.
Not with that attitude
It takes a stupid cow, but when they can climb mountains as they do it is not inconcievable that one can roll down.
(I was suprised to see a cow jumping up on a ~3m rock ledge like it was nothing)
However, they can go up stairs, but not down them.
Or on shabbos