How did Naya simulate the force exerted on the head?

Answer :

Answer:

Naya used a machine that shoots tennis balls, like this one, to fire balls at a mannequin's head. ... Once Naya knew how much the mannequin moved with each hit, she could calculate how much force the head had received from each blow.

Answer:

She used a device to fire tennis balls at a mannequin head.

Explanation: EXACT ANSWER FROM PLATO/EDMENTUM!!! <3