[HPforGrownups] Some mistakes in book1???

[Irene Mikhlin]

No: HPFGUIDX 47810

Maria wrote:

> 2. During the Gryffindor/Slytherin Quidditch match Lee Jordan says a
Bludger hit Katie Bell (or one of the other Chasers, don't remember) on the
back of the head. She's probably have a concussion - since Bludgers
apparently hit with a strong enough force to break an arm.

If she was flying in the same direction as the bludger (and she probably was
for it to hit her from the back),
the relative speed was not that high, so it's not the same as the Bludger
hitting Harry who didn't move at the time.

Irene