Lucy holds a football in place by pressing down on it with a

Last updated: 7/31/2022

Lucy holds a football in place by pressing down on it with a force of 10 N while Charlie Brown attempts to kick it. The mass of the football is 2 kg and the coefficient of static friction between the football and the ground is 0.89. Assuming Lucy does not pull the ball away, what minimum horizontal force must Charlie Brown apply to the football in order to move it?