Suppose Car A has 1000 units of momentum and Car B has 0 units of momentum (it's at
rest) before they collide. Which of the
following statements is true about Car A and
Car B after they collide, according to the law
of conservation of momentum?
Car A and Car B will each have 1000 units of
momentum.
Car A will now have 0 units of momentum and Car
B will have 1000 units of momentum.
Car A and Car B will have a combined (total)
momentum of 1000 units.
Car A will still
have 1000 units of momentum and
Car will still have 0 units of momentum,

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.