Question

a baseball is thrown straight up into the air and falls back down. when does the baseball have the greatest amount of kinetic energy? at its the highest point it has the same amount of kinetic energy the entire time. when it is held in a hand as soon as it is released and right before it is caught

Explanation:

Kinetic energy ($KE = \frac{1}{2}mv^2$) depends on speed (v) and mass (m). When held, speed is 0 (KE=0). At highest point, speed is 0 (KE=0). During motion, speed is highest just after release (when thrown) and just before catch (when falling back, near original speed if no air resistance), so KE is greatest then. The "same KE entire time" is wrong (speed changes), "highest point" has 0 speed, "held" has 0 speed.

Answer:

as soon as it is released and right before it is caught