6. A soccer ball rests on the field at the location x= 5.0 m. Two players run along the same straight line toward the ball. Their quations of motion are as follows. X, = -8.2 m + (4.2 m/s) *1 X = -7.2 m + (3.9 m/s) *t a) Which player is closest to the ball at t= 0

b) What is the location of the players when one of the players passes the other?

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.