Question 805720
The average acceleration during the 0.42 second the ball is being pushed by the player's hand is
{{{40ms^(-1)/"0.42 s"}}}={{{95}}}{{{m}}}{{{"/"}}}{{{s^2}}}
Since {{{g=9.81}}}{{{m}}}{{{"/"}}}{{{s^2}}} , the acceleration in g's is
{{{40/0.42/9.81=9.7}}}