Candace (sister to Phineas) has taken up pole-vaulting for her school track & field team

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Candace (sister to Phineas) has taken up pole-vaulting for her school track & field team. She approaches the takeoff point at a speed of 9.00 m/s, and we want to know how high she can vault.

a. At the end of her run, and before launching off the ground, Candace's energy is ALL PEg

or ALL KE?

b. At the peak of her vault, all of Candace's energy is ALL PEg or ALL KE.

c Assuming that only this speed determines the height to which she can rise, find the maximum height at which Candace can clear the bar.