Answer:
Step-by-step explanation:
Ke = 1/2mv^2
Ke= .5x500kgx(12m/s)^2
Ke = 36,000 J
140 total members. 35 is just 1/4 of the members there so you can just multiply it 4 times to get your answer because 100% of members is 140
35 = 25%
70 = 50%
105 = 75%
140 = 100%
damm no idea sry
Step-by-step explanation:x_X
Solve each one to find that D is the answer