Name: _ W Lab Al: Lab Section: it SPH-K39'l ' Work & Power Lab Spring 2023 . 3. (6 pts) Kelsie Ahbe (72 kg) was an Indiana Hoosier who competed in the 2016 Olympics in the pole vault competition. Her center of mass (COM) was 1.0 m above the ground as she ran toward the pole vault pit. For her best successful attempt, her nal velocity the 1 instant before she took off from the ground was 4.2 m/s. At the top of herjump, all of her " mechanical energy was converted into potential energy. (a) What was the height of ' Kelsie's winning jump, assuming the peak height of her COM while in the air was the i sanight as the bar? (b) What was Kelsie's vertical velocity the instant she landed i on a t 0.6 m off the ground (is. when COM height = mat height)? (c) When Kelsie's vertical velocity reached zero after landing on the mat, the mat compressed to a maximum depth of 0.3 m. How much work was done by the mat? (d) What average net k force did the mat exert on Kelsie during the landing? (e) What was Kelsie's change in l momentum while she was in contact with the mat? (f) How long did it take Kelsie to come to rest while she was in contact with the mat? a. Peak height: b. Vertical Velocity at landing: 0. Work done by mat: The sign or direction of the amount of work done indicates: d. Average net vertical force: The sign or direction of the amount of the ave. force indicates: 9. Change in momentum while in contact with the mat: .,__,A \"Wk-Aavwij 4., rmm,\" 1'. Time for Kelsie to come to rest