Please help me understand how to solve these? Please provide diagrams if possible.

PRACTICE PROBLEMS FOR CHAPTER 6 These practice problems are due by Tuesday (4/26/22). Problems turned in past this date will receive half credit. You must show your work to receive credit. You may do this with one other person from class. If you do, make sure both your names are on your submission. 1) The hamstrings insertions are 2 inches from the knee joint and move through a linear displacement of 3 inches during a leg curl exercise. If the foot is 18 inches from the knee joint, how much linear displacement does it go through? (1 point) 2) Between the second pull and the catch of a power clean exercise the lifter's elbow angle goes from 0 degrees to 100 degrees in . 1 seconds. What was the average angular velocity of the elbow angle? (1 point) 3) While teeing off, the distance from the head of the club to the longitudinal axis of the golfer's body is 2 m. If she swings the club with an average angular velocity of 26 rad/s, what is the average linear speed of the club head? (1 point) 4) The angular velocity of a runner's thigh changes from 2.7 rad/s to 3.0 rad/s during a 0.2 second time period. What was the average angular acceleration of the thigh? (1 point)