A car with a mas of 1000kg is accelerating at 40 mph when it crashes. What is the force it exerts in the crash? Another car with a mass of 8000kg is accelerating at 5 mph when it crashes. What is the force of its crash? How do the forces of the two crashes compare? Why is that?

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.