Two 900 kg cars drive east; the first moving at 40 m/s, the second at 35 m/s. What is the magnitude of the total momentum of the system (to 3 sig figs)?

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.