Q. The leg and cast weigh 200 N, with the center of mass as indicated by the blue arrow. The counterbalance w1 weighs 110 N. Determine the weight w2 and the angle α needed so that no force is exerted on the hip joint by the leg plus cast.
Q. A woman is reported to have fallen 144 ft from a building, landing on a metal ventilator box, which she crushed to a depth of 18 in. She suffered only minor injuries.
a)speed of woman just before she collides with box
b)average acceleration while in contact with box
c)with acceleration constant, what is the time interval it took to hit the box?