Runner knocks 1st baseman down

[IRISHMAFIA]

Originally Posted by mccann

Grond ball to shortstop, throws ball to 1st which the 1st baseman catches the ball in front of the base, runner coming down the line hits the 1st baseman and knocks the player on their back and the ball comes out of the glove after the 1st baseman hits the ground. I call her out for not trying to avoid the collison. Is this the correct call.

Not enough info.

Rules set?
Define "in front of the base". Does that mean toward home or toward SS?
Assuming F3 did not have contact with the base.
Where was the runner? Using a double-base?
How close was the runner when F3 moved in front of them?
Was there any chance for the runner to react?