Can you please help me answer question 8 and 9 and show work.

8. Pendulums: There is a pendulum hanging from the beam in the classroom. 3. Draw this pendulum swinging back and forth and identify the locations where the pendulum has maximum kinetic energy and maximum gravitational potential energy. b. Displace the pendulum around 30 degrees and release it. Make measurements using only the meter stick and a balance (scale) and calculate the velocity of the pendulum as it passes through the lowest point. 0. Bonus review guestion: calculate how much time it took for the pendulum to reach its lowest point. 9. The graph to the right represents the motion of a skateboarder skating down a ramp for 5 seconds. The skater was initially at rest. :2 a. If energy is conserved, how high was 3: the skater at the top of the ramp? '5 2 . . . . b. Bonus review Question: use your > 0 1 2 3 4 5 graphing skills to calculate the length of Time (s) the ramp