Quote:
Originally Posted by jTheUmp
Assuming there's no air resistance, they will hit the ground at the same time if dropped from the same height above the ground. (Physics is a wonderful thing).
The reason you want the mask to pop off when struck by a baseball can be explained quite simply: Any amount energy required to pop the mask off of your head is that much less energy that is absorbed by your face/skull/brain. Less energy absorbed by the face/skull/brain = less chance of concussion.
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1) Where do you work ball where there is no air resistance?
2) I would also think a glancing blow < of a chance of a concussion.
3) With all the variables, I don't think you can say there is a concise science to determine when or when not a concussion will happen.