Onside kick rule

[beamer24]

Is it a penalty to hit a player on the receiving team prior to the ball going 10 yards?

 

[CrazyHeel]

No

 

[tarheelg]

Is it a penalty to hit a player on the receiving team prior to the ball going 10 yards?

it is in college, don't know about high school

 

[FBRef]

Is it a penalty to hit a player on the receiving team prior to the ball going 10 yards?

Yes it is.

The kicking team may not contact a receiving team player until:
1- the ball goes 10 yards or
2- the ball is touched by the receiving team or
3- the receiving team blocks first.

It's a 10 yard penalty.