A student first dives off a platform 5.0 m above the water. Next she dives off a

Question

A student first dives off a platform 5.0 m above the water. Next she dives off a platform 10.0 m above the water. How does her kinetic energy (just as she strikes the water) compare in each dive?
   a.   her kinetic energy is one quarter as much in the second dive.
   b.   her kinetic energy is the same in each dive.
   c.   her kinetic energy is twice as much in the second dive.
   d.   her kinetic energy is four times as much in the second dive.
   e.   her kinetic energy is one half as much in the second dive.

Explanation / Answer

here the height is double by conservation of energy

kinetic energy equals to the potential energy

here height is doubled hence the kinetic energy is dobled

then option Cis right answer

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